RAW CAPTION: Got it, let's tackle this. First, the video starts with a wide shot of a room where people are seated at tables, and a man in a blue shirt is moving around. Then it cuts to a close-up of a woman with red hair in a braid, wearing a black top. She's holding a wine glass, swirling it, and then taking a sip. There's another woman next to her, also in a black top, with long dark hair. The background has a painting of what looks like grapes or something, but we don't need to mention that unless essential. The camera moves from a wide shot to a close-up on the woman, so the perspective changes. Let's structure it chronologically: first the wide shot with the man moving, then the close-up on the woman swirling and drinking. Need to mention the main subjects' actions, appearance, and camera movement.

Check rules: a) motion and behavior in order. First, the man in blue shirt (but maybe not main, but the first scene has that). Wait, the first frame is a room with people at tables, a man in blue shirt moving. Then cuts to two women, one with red hair. So main subjects are the woman in black with red hair (braid, black top) doing wine glass actions, and the other woman (long dark hair, black top) in the background. Need to describe the sequence: initially, a wide view shows a room with people at tables, a man in a blue shirt moving. Then the camera cuts to a close-up of a woman with red hair in a braid, wearing a black top, holding a wine glass, swirling it, and drinking. The other woman is seated next to her. Camera perspective changes from wide to close-up.

Wait, the first frame [0.0] is a wide shot: people at tables, a man in blue shirt moving from left to right? Then [1.4] is close-up of a woman (red hair, braid, black top) holding a wine glass. She swirls it, brings it to her mouth. Then [4.7] she's drinking. The other woman is to her left, also in black. Background has a painting, but minimal. So chronological:

- Initial wide shot: room with people seated at long tables, a man in blue shirt walking along the table area. Then the camera shifts to a close-up of a woman with reddish-blonde hair in a braid, wearing a black top, who holds a wine glass, swirls it, and takes a sip. She is seated next to another woman with long dark hair, also in a black top. The camera moves from a wide-angle view to a close-up of the woman swirling and drinking the wine.

Check rules: exclude text, named characters, so don't say "wine tasting" but just actions. Keep it concise. Let's draft:

The video opens with a wide shot of a room where people are seated at long tables; a man in a blue shirt moves along the tables. The camera then cuts to a close-up of a woman with reddish-blonde hair in a braid, wearing a black top, who holds a wine glass, swirls it, and drinks from it. She is seated next to another woman with long dark hair in a black top. The camera transitions from a wide-angle perspective to a tight close-up of the woman's actions.

Wait, need to make sure it's chronological and concise. Let's check:

- First part: wide shot (0.0) shows man in blue shirt (not main subject, but part of initial scene), people at tables.

- Then [1.4] close-up on woman with red hair (braid, black top) holding glass, swirling.

- [2.5] she continues swirling.

- [3.6] she brings glass to mouth, drinks.

- [4.7] she's drinking.

So the main actions are the woman swirling and drinking. The other woman is next to her. So the caption should describe the sequence of the camera moving from a wide shot to a close-up of the woman's actions with the wine glass.

Final draft:

The video begins with a wide shot of a room with people seated at long tables; a man in a blue shirt walks through the space. The camera then shifts to a close-up of a woman with reddish-blonde hair in a braid, wearing a black top, who swirls a wine glass in her hands before drinking from it. She is seated next to another woman with long dark hair, also in a black top. The camera moves from a wide-angle view to a tight close-up of the woman’s actions.
</think>

<caption_output>The video begins with a wide shot of a room where people are seated at long tables; a man in a blue shirt

The woman on the right (red hair) is holding a wine glass and moving it (drinking, swirling), which is a discrete solid object motion.

Static background with no shifting elements; no fire, water, smoke, or wind observed.


A hand adds light brown cashews from a small bowl into a wok containing mixed vegetables (broccoli, carrots, green beans) and noodles on a gas stove, then adds fresh green cilantro from another small bowl into the wok. The hand moves from left to right over the wok, with the ingredients arranged in the center of the frame. The camera maintains a close-up, static perspective focused on the wok and cooking process.

Discrete solid objects (human hands) are moving to add ingredients (shredded tofu, herbs, spices) into a wok, exhibiting explicit physical interactions.

The background consists of a static kitchen setting (gas stove, countertop) with no shifting elements or fluid/environmental motion (fire, water, smoke, wind) dominating the scene.


RAW CAPTION: Got it, let's break this down. First, the video starts with a close-up of a hand manipulating a brass door handle. Then, the hand uses a tool to turn the handle, maybe a lock pick. Next, the door opens, and we see two people—wait, no, the next frame shows a person opening the door, then another frame where someone is holding the door. Let's check the chronology.

Frame 0: Hand on brass door handle. Frame 1: Same hand, maybe twisting. Frame 2: A tool (like a lock pick) is inserted into the lock. Frame 3: The door handle is turned, and the door opens. Frame 4: A person in a dark jacket is opening the door, and there's a woman nearby.

So the sequence is: hand manipulating lock, tool used, door opened, then two people (one opening door, one standing beside). The camera moves from close-up of the lock to the door opening, then to the people. Background is a white wall with some texture, but minimal description needed.

Need to mention the motion: hand turning handle, using tool, door opens, then a person opening the door with another person standing to the left.

Check rules: focus on motion and behavior in order. Mention appearance: brass handle, tool (blue?), hands. Spatial: hand in front of door, then people in front of door.

Also, the camera: starts close-up, then maybe pulls back to show the people.

Wait, the frames: first three frames are close-up on lock, then frame 4 shows two people by the door.

So the paragraph should be:

A hand manipulates a brass door handle, then inserts a tool into the lock mechanism. The hand turns the handle, causing the door to open. The camera then shifts to show a person in a dark jacket opening the door, with a woman standing to their left, both positioned in front of the wooden door.

Wait, check the frames:

Frame 0: hand on handle

Frame 1: same hand, maybe turning

Frame 2: a tool (blue handle?) is used on the lock

Frame 3: door handle is turned, door opens

Frame 4: two people (a man in dark jacket opening the door, a woman beside him)

So chronological order: hand turns handle, uses tool (maybe picking), then door opens, then two people are there.

Need to be concise. Let's structure it:

A hand manipulates a brass door handle and inserts a tool into the lock. The hand turns the handle, opening the door. The camera then shows a person in a dark jacket opening the door, with a woman standing to their left, both in front of the wooden door.

Wait, the tool in frame 2: maybe the tool is blue, but the rule says exclude text recognition, so maybe just "a tool" without color. But the rule says "briefly describe their appearance and number (color, size, orientation)"—so if the tool is blue, should mention? Wait, the rules say "if relevant", but maybe not necessary. Wait, the rule f says exclude text recognition, so the tool's color might not be necessary. But the user is an expert captioner, so maybe just "a tool" is enough.

Wait, the problem says: "Briefly describe their appearance and number (color, size, orientation)." So for the tool, in frame 2, it's a blue tool, but since it's a close-up, maybe "a blue tool" is okay. But the rule also says "Exclude text recognition", but the tool is an object in the video, not text. Wait, the text is the caption on the screen, which we exclude. The tool is part of the video content, so we can describe it.

But maybe the captioner should focus on main motion. Let's see.

Another way: The sequence shows a hand turning a brass door handle, then inserting a tool into the lock, turning the handle to open the door. The camera then pans to reveal a person in a dark jacket opening the door with a woman standing to their left, both positioned in front of the door.

Wait, but need to follow the rules: chronological order. So first the hand on the lock, then tool, then door opens, then the two people.

Let me check the actual frames:

- [0.0] Close-up of a hand turning a brass door handle.

- [1.0] Close-up of the same hand, now using a tool (blue handle) on the lock.

- [2.0] The hand turns the handle, and the door opens slightly.

- [3.0] The camera pulls back to show a person in a dark jacket opening the door, with a woman standing to their left.

So:

A hand manipulates a

A hand manipulating a door lock (turning key, using tool), followed by the door being opened and people (including a child) entering the house—solid objects moving due to explicit physical actions (locomotion, manipulation).

No shifting background elements; walls remain static with consistent texture. No fluid/environmental motion (fire, water, smoke, or wind) present.


The video opens with a split-screen showing four scenes: hands threading a metallic spool into a sewing machine, hands manipulating brown fabric, a hand adjusting a metal clip on a white surface, and hands folding beige fabric. It transitions to a hand guiding black fabric through a sewing machine, with scissors and a container on a wooden table. Next, hands lift the black fabric to display its form. Finally, the camera zooms in on a sewing machine dial, highlighting a setting with an arrow indicating adjustment.

Sewing machine needle moving through fabric, hands guiding fabric under the needle, and leather material being manipulated by hands.

No shifting backgrounds or fluid/environmental motion detected. Static elements like the sewing machine, fabric, and table remain consistent across frames without uniform background movement.


Three people in bright yellow-green safety vests stand on a grassy area beside a dense hedge, with parked cars visible to the left. One person adjusts a tripod-mounted device with a yellow top while the others observe closely; later, one individual steps back slightly. The camera remains stationary, capturing the scene from a side angle.

Two individuals in high-visibility vests and a surveyor's tripod; the individuals exhibit subtle movements (e.g., pointing, minor shifts in posture) while stationary relative to the ground.

No shifting backgrounds (cars, trees remain static across frames) or fluid/environmental motion (e.g., fire, wind) observed.


A boy in a white shirt, dark shorts, and white sneakers runs across a grassy field, turns to face the camera, kicks a white ball forward, and chases after it as the ball flies toward the green field in the background. The camera remains stationary with slight shake, capturing the motion against a backdrop of a hedge and distant green field.

A person in a white shirt and dark shorts swings a racket/bat, making contact with a ball, causing the ball to fly through the air. The person's locomotion (walking/swinging) and the ball's trajectory are discrete object motions.

The background (green field, bushes) shows no shifting or fluid motion; no fire, water, smoke, or wind effects observed.


A person in a black shirt manipulates a pink balloon with both hands, initially holding it vertically, then twisting and shaping it into a twisted form while keeping the balloon in front of their torso. The background is a solid purple wall. The camera remains static and centered on the person's upper body.

A person (solid object) is manipulating a pink balloon with their hands, twisting and shaping it through explicit physical forces.

The background is a static purple wall with no shifting elements or fluid motion (e.g., fire, water, smoke, wind).


A person in a white shirt and black pants, wearing tan gloves, holds a light green apple with a stem in their left hand. Using a knife in their right hand, they rotate the apple while peeling the skin in a continuous motion. The apple is positioned in front of the person, with the peel spiraling away from the fruit. In the background, shelves with white cups are partially visible but remain out of focus. The camera maintains a steady close-up perspective centered on the hands and apple, capturing the peeling action in detail.

A person's hands and a knife are moving to peel a yellow fruit; the fruit's segments and peel are displaced due to mechanical action (cutting and pulling).

Background shelves with eggs remain static throughout the clip, showing no uniform shifting or fluid/environmental motion (e.g., no fire, water, or wind dominance).


A person in a blue patterned dress lies on a blue couch, head resting on the armrest with one hand behind their head. Another individual in light-colored clothing enters from the top left, leans over the couch to kiss the first person. The first person reacts by moving their arm and turning away, causing the second individual to exit the frame. The camera remains stationary, capturing the couch and a small side table with a device in the background.

Two solid objects (people): a person lying on a couch initially, then waking up and exiting; a boy entering, interacting with the first person, and then leaving the frame. All movements are discrete and trackable via bounding boxes.

No shifting backgrounds or fluid/environmental motion (fire, water, wind) observed. The wall and table remain stationary throughout.


Eight browned, cylindrical hot dogs sizzle on a water-dotted metal pan. A spatula enters the frame, pushing and flipping one hot dog across the pan, repositioning it to the right. The hot dog rotates fully, revealing its charred surface. The camera maintains a top-down perspective throughout, focusing on the pan and the spatula's motion.

Discrete solid objects (hot dogs) are being manipulated by a spatula; the spatula applies force to flip and reposition the hot dogs, indicating physical interaction.

The background consists of a static metal tray with no shifting elements or fluid/environmental motion (no fire, water, smoke, or wind effects observed).


A person in a colorful short-sleeve shirt and orange shorts walks across a paved area toward a yellow ball lying on the ground, bends to pick it up, and continues moving forward. The camera follows the person's motion with a slight shake, capturing their lower body and the ball’s position on the pavement. Background elements include blurred trees and buildings, with minimal focus on the environment.

A person (wearing colorful shirt and orange shorts) is moving toward a chicken, crouching, and gesturing; the chicken is moving across the pavement.

Background elements (trees, building, ground) show minimal uniform shift; no fire, water, smoke, or wind effects detected in the scene.


A group of children in red, white, and green martial arts uniforms sit cross-legged on a red mat in a dojo. Some children stand, including a boy in red near a seated adult in black uniform holding an object. Another adult in blue shirt moves among the children, adjusting their positions. The camera pans right, capturing the group from a slightly elevated angle as the children and adults interact in the space.

Discrete solid objects (children and adults) exhibit motion: children shift positions while seated, adults walk around the perimeter, and individuals gesture during interaction.

The background elements (walls, whiteboard, stacked objects) show no uniform shifting or fluid motion. No fire, water, smoke, or wind is present in the scene.


RAW CAPTION: Got it, let's tackle this. First, I need to watch the video sequence. The video starts with kids playing. Let's break down each frame.

Frame 0: A child in a colorful dress and hat is holding a stick, maybe a baton, near a yellow post. Another kid in a black shirt and white shorts is also holding a stick, standing by a yellow post. Background has blue structures, maybe a pool area. There's another child in the background near a bench.

Frame 1: Same scene, maybe a bit more movement. The child in black shirt is now near the yellow post, and another child in black shirt and white shorts (wait, maybe same kid?) is moving towards the post. The first kid in colorful dress is still there.

Frame 2: The child in black shirt and white shorts is now standing next to the yellow post, which is on the ground. Another child in a blue shirt and white shorts is near a table. The scene is shifting to the right maybe.

Frame 3: The child in black shirt and white shorts is standing by a yellow post, which is taller. Another child in a blue shirt and pink shorts is on a bench, maybe sitting. The environment has blue structures.

Frame 4: A child in a yellow Hello Kitty shirt and pink pants is jumping, holding a stick. There's a table with people sitting around, maybe at a picnic table. The yellow post is still there.

Frame 5: The child in black shirt and white shorts is near the yellow post, and another child in a black shirt and white shorts is in the background. The yellow post is still present.

Now, main subjects: kids playing with sticks near yellow posts. Motion: they're moving around, interacting with the posts, maybe hitting or playing with the sticks. Appearances: kids in various colored clothes (black shirts, yellow shirt with Hello Kitty, pink pants, blue shirt). Numbers: multiple kids, at least 3-4 visible. Spatial: kids are around the yellow posts, some near tables, others in front of blue structures.

Chronological order: First, kids holding sticks near yellow posts (frame 0-1), then moving around (frame 2-3), then a kid in yellow shirt jumps (frame 4), then back to kids near posts (frame 5).

Camera movement: the video seems to pan left or right as it moves from one scene to another. Maybe a handheld camera, slight shake. Background minimal except for the blue structures and tables.

Exclude text, so no "Hello Kitty" text mention, but the shirt has Hello Kitty, but rule f says exclude text recognition. Wait, rule f says "Exclude text recognition, named characters, or stylistic analysis." So even if the shirt says Hello Kitty, we don't mention it. Wait, the example in the problem: the child in yellow shirt with Hello Kitty, but according to rule f, exclude text recognition. So just say "yellow shirt" without mentioning Hello Kitty.

Wait, let's check the rules again. Rule f: Exclude text recognition, named characters, or stylistic analysis. So even if the shirt has a logo, we don't say "Hello Kitty", just "yellow shirt". So in frame 4, the kid is in yellow shirt and pink pants.

So main subjects: multiple children, various colored clothing, holding sticks, moving around yellow posts.

Now, structure the caption:

Start with chronological order. First, a child in colorful dress and hat holds a stick near a yellow post. Another child in black shirt and white shorts also holds a stick near the same post. Then, the children move around; the first child walks past the yellow post, while another child in a blue shirt stands near a table. A child in a yellow shirt and pink pants jumps while holding a stick. The camera pans right, following the children's movements, with slight shake.

Wait, let's list the order of frames:

Frame 0: child in colorful dress/hat holding stick near yellow post; child in black shirt/white shorts holding stick near yellow post.

Frame 1: child in black shirt/white shorts is now near yellow post (maybe hitting it?), another child in blue shirt/white shorts is near a table.

Frame 2: child in black shirt/white shorts standing by yellow post (which is on the ground now?), another child in blue shirt and pink shorts is on a bench.

Frame 3: child in black shirt/white shorts is near yellow post (maybe the post is tall now), another child in blue shirt is on bench.

Frame 4: child in yellow shirt and pink pants jumps, holding stick; background has a table with people.

Frame 5: child in black shirt/white shorts is near yellow post, another child in black shirt/white shorts in background.

So motion: kids are playing with

Discrete solid objects (children) exhibit motion from physical interactions: a child in a black dress swings a rope, another child in a green shirt interacts with the rope, and children move across the scene via locomotion and rope handling.

No significant fluid/environmental motion (fire, water, smoke, wind) observed; background elements (yellow pillars, blue wall, concrete ground) remain stable with no uniform shifting.


RAW CAPTION: Got it, let's tackle this. The video shows chicken cooking in a pan. First, there's a close-up of the chicken pieces sizzling. Then the pan is shown with the chicken, maybe moving to show the cooking process. The chicken is browned, looks crispy. The background is green, outdoor maybe. Need to describe the sequence.

Chronological order: first the chicken in pan (close-up), then the pan on a stove (maybe), then the chicken with some liquid, maybe adding ingredients? Wait, the video has clips: first a close-up of chicken in pan, then the pan on a stove, then the chicken with some sauce or liquid. Wait, the images are: first 0.0 seconds, then 0.3, 1.4, 2.5, 3.6, 4.7.

Looking at the frames:

- [0.0] Close-up of chicken pieces in pan, sizzling.
- [0.3] Pan on stove, chicken cooking.
- [1.4] Pan on stove, chicken pieces.
- [2.5] Similar, chicken in pan.
- [3.6] Same.
- [4.7] Chicken in pan with a leaf (maybe a bay leaf?) and liquid.

So motion: the chicken is being cooked, the pan is on a stove, the camera moves to show different angles. The chicken is golden-brown, pieces. Background is green, blurred (outdoor). The sequence shows the chicken cooking, possibly browning and then adding sauce or liquid.

Need to mention the main subject: chicken pieces. Appearance: browned, crispy, in a pan. Motion: sizzling, cooking. Spatial: pan on stove. Camera: close-ups, maybe panning. Background minimal, green outdoor.

Let's structure:

The video shows chicken pieces sizzling in a black frying pan. Initially, close-up shots highlight the browned, crispy chicken, which is then shown on a stove with the pan tilted slightly. As the sequence progresses, the chicken remains in the pan, gradually acquiring more liquid and a green leaf (bay leaf) is added, all while the background remains a blurred green outdoor setting. The camera maintains close-up perspectives, shifting angles to capture the cooking process from various sides.

Wait, check rules: focus on motion and behavior. So chronological order: first chicken cooking, then pan on stove, then adding liquid/leaf? The frames show the chicken in pan, then pan on stove (maybe the pan is lifted?), but in the given frames, it's the chicken in pan on a stove. Then the chicken with liquid.

Wait, the video clips:

0.0: close-up chicken in pan.

0.3: pan on stove, chicken.

1.4: pan on stove, chicken.

2.5: pan on stove, chicken.

3.6: pan on stove, chicken.

4.7: chicken in pan with liquid and a bay leaf.

So the motion is the chicken cooking, the pan is on the stove, then adding liquid and the bay leaf. The chicken is golden-brown, pieces (maybe 3-4 pieces). Background is blurred green (outdoor).

So caption:

Golden-brown chicken pieces sizzle in a black frying pan, initially shown in close-up, then placed on a stove where the pan remains steady as the chicken cooks. Over time, the chicken absorbs liquid, with a bay leaf added to the pan, while the background stays a blurred green outdoor scene. The camera captures these stages through close-up shots, shifting slightly to focus on the cooking process.

Wait, check rules: exclude text recognition (the ABC logo is in the corner but we don't mention that). Also, mention spatial relationships: the pan is on the stove (which is outdoors). The chicken pieces are in the pan, which is on a stove.

Let me draft:

The video depicts golden-brown chicken pieces cooking in a black frying pan. Initially, the chicken is shown in close-up, sizzling as it browns. The pan is then placed on a stove, with the chicken remaining in the pan as it continues to cook. As the sequence progresses, liquid and a bay leaf are added to the pan, surrounding the chicken pieces. The background remains a blurred green outdoor setting. The camera maintains close-up perspectives throughout, slightly shifting angles to capture the cooking process.

Wait, but the rules say "conclude with camera perspective and movement". So the last part should be camera perspective.

Also, "keep background descriptions minimal unless essential". So "blurred green outdoor" is minimal because it's the setting but not essential for motion. Wait, maybe just "outdoor background" but blurred.

Let's make it concise.

Final caption:

Golden-brown chicken pieces sizzle in a black frying pan, initially shown in close-up before the pan is placed on

Chicken pieces in a pan exhibit subtle movement due to cooking (e.g., sizzling, oil bubbling), with no significant collision or locomotion.

Background contains static greenery and rocks with no uniform shifting; no dominant fire, water, smoke, or wind motion observed.


RAW CAPTION: Okay, let's tackle this video captioning task. So, the user provided a video clip and wants a concise chronological paragraph following specific rules. Let me read through the rules again to make sure I don't miss anything.

First, the main points: focus on motion and behavior of subjects in order, describe appearance and number briefly, mention spatial relationships if relevant, conclude with camera perspective and movement. Background should be minimal unless essential. Exclude text, names, or stylistic stuff. Output must be in the specified format.

Looking at the video description, it's a person in a dark shirt sitting indoors. The video shows them moving a microphone or object in front of them. The background has a door and a wall, but the user says to keep background minimal. So maybe just note the setting briefly.

Chronological order: The person is holding something (maybe a microphone), then moves it slightly. The actions are: starting to hold, moving the object. Need to describe the person's actions step by step.

Appearance: The person is wearing a dark shirt, maybe sitting. The object they're holding is dark, maybe a microphone. Number is one person.

Spatial relationships: The person is in front of a door and wall. Maybe the microphone is in front of them as they move it.

Camera perspective: The video seems to be a close-up, maybe a bit shaky since it's a handheld shot. The camera doesn't move much, but there's a slight shake as per the original video.

Check if background is essential. The door and wall are part of the setting but the user says to keep minimal. So perhaps mention "indoor setting with a door and wall" but not too detailed.

Wait, the example output from previous examples (even though not given here) probably keeps it brief. So maybe just "sitting in front of a door and wall".

Now, structure the paragraph: Start with the person holding the object, then moving it. Mention their appearance (dark shirt), the object (dark, possibly microphone), then the motion. Then camera perspective.

Wait, the video starts with the person holding the object, then moving it up and down. So chronological order: The person sits, holds the object, then moves it slightly.

Check the rules again: focus on motion and behavior. So describe the sequence: person is holding a dark object, moves it upward and downward in front of them.

Number: One person.

Appearance: Dark shirt, male.

Background: Indoor, with door and wall (but minimal, so maybe just "indoor setting" but the door is visible, so perhaps "sitting in front of a door").

Camera: Close-up, slight shake.

Putting it all together: A person in a dark shirt sits in an indoor setting, holding a dark object (likely a microphone) in front of them. They move the object slightly upward and downward with both hands. The background includes a door and wall. The camera maintains a close-up perspective with minimal movement, exhibiting a slight shake.

Wait, but the rules say to mention spatial relationships if relevant. Here, the object is in front of the person. So "holding a dark object in front of them".

Check if the background is essential. The door is part of the setting, but maybe it's okay to mention briefly.

Also, the user said to exclude text recognition, so no need to say "microphone" unless it's obvious. But the object looks like a microphone. But the rules say "briefly describe their appearance", so maybe "dark object" is sufficient.

Let me check the example in the problem statement. Wait, the user didn't give an example, but the previous instructions have the rules. The example might be like: "A person wearing a dark shirt moves a black object in front of them. The background shows a white door. The camera is static with minor movement."

But according to the rules, background minimal. So maybe just say "indoor setting with a door visible".

Wait, the first frame shows a person in front of a door and a wall. So maybe "sitting in front of a door and wall".

Putting it all together:

A person in a dark shirt sits indoors, holding a dark object with both hands. They move the object slightly upward and downward in front of themselves. The background features a white door and wall. The camera maintains a close-up perspective with slight shake, remaining mostly static.

Wait, but the problem says "conclude with the camera perspective and movement". So the last part should be about camera.

Also, the rules say "briefly describe their appearance and number". So "a person in a dark shirt" (appearance, number one).

Check the chronological order: starts holding, then moving.

Maybe:

A person wearing a dark shirt sits in an indoor setting, holding a dark object with both hands. They move the object upward and downward in front of them. The background

A person is moving their hands and a book; the book is being held and manipulated by the person, causing distinct motion.

No shifting backgrounds or fluid/environmental motion (fire, water, wind) detected. Background (door, wall) is static.


A person wearing light-colored pants and a white perforated shoe approaches a metal detector on sandy ground. The individual adjusts the detector, lifts the shoe to reveal sand trapped in its holes, and shakes it. The camera maintains a top-down perspective throughout, focusing on the person’s actions and the sand-covered shoe.

A person moves a metal detector and uses a tool to dig sand, with sand being displaced due to physical interaction.

The sand background remains static with no uniform shifting; no fire, water, smoke, or wind is dominant.


In a gymnasium, several children and an adult walk across the wooden floor, some carrying yellow balls; children wear orange, blue, and neon yellow shirts, while the adult wears a dark blue jacket and khakis. The group moves toward the right side of the frame, followed by a close-up of a yellow and black ball held by hands.

Children in the gymnasium exhibit discrete locomotion: the child in blue moves leftward, the child in orange walks toward the center, and other children adjust positions. The hand holding the yellow ball demonstrates minimal, controlled movement.

The bleacher wall background remains static throughout the gymnasium scene (0.0-4.2s) with no shifting or environmental effects like fire, water, or wind. The close-up of the ball (4.3-5.0s) shows no ambient elements.


Two individuals engage in a boxing drill on a blue mat with wooden walls in the background. The left participant, wearing a black sleeveless top, gray pants, and white shin guards, advances and throws a punch. The right participant, in a patterned shirt, black shorts with yellow trim, and red shin guards, blocks the punch with raised gloves. The left individual then retreats slightly while continuing the exchange. The camera remains static, capturing the scene from a fixed frontal position.

Two boxers engage in discrete physical interactions: stepping, punching, and dodging with visible force transfer between their bodies and protective gear.

Background (wooden walls and blue mat) is static with no fluid or gaseous motion; no fire, water, or wind detected.


A person wearing a light-colored sweater repeatedly picks up puzzle pieces from a box and places them onto a partially completed jigsaw puzzle with a green border, depicting a portrait of a person with red hair, butterflies, and additional faces. The puzzle box sits on a dark carpet to the right of the scene. The camera maintains a static top-down perspective throughout.

Discrete solid objects: person's hands and jigsaw puzzle pieces. Hands actively grasp, move, and place pieces into the puzzle frame.

Background (dark floor, green puzzle mat, box) remains static with no uniform shifting. No fluid/environmental motion (fire, water, smoke, wind) detected.


A person in a dark suit and light green tie is seated at a table, speaking into a microphone. They make subtle head movements while addressing an audience, occasionally glancing downward. The camera remains stationary in a medium shot, capturing the individual against a muted background with a partial flag visible to the left.

The speaker (Van Tran) is moving his head and mouth due to speaking; no other discrete solid objects are in motion.

Background elements (flag, wall) are static; no fluid/environmental motion (fire, water, smoke, wind) observed.


A man in a white shirt and light shorts stands near a bucket on a grassy course, swings a golf club, and hits a ball toward a parked golf cart in the background. After the swing, the man walks away from the bucket toward the cart. The camera remains stationary, capturing the scene from a slight angle with trees framing the background.

A golfer (solid object) swings a club, causing a golf ball (solid object) to move through the air. Both movements are discrete and trackable via bounding boxes.

Background elements (trees, golf cart) show no uniform shifting or fluid motion; no fire, water, or smoke observed.


A pair of hands manipulates a white perforated fabric with evenly spaced holes, guiding a blue thread through its holes. The left hand holds the fabric steady while the right hand threads the blue thread through the fabric, moving the fabric slightly to position the thread. The background features a wooden surface. The camera maintains a top-down perspective throughout, capturing the hands’ precise movements with minimal motion.

Human hands are manipulating a needle and fabric, performing discrete movements characteristic of needlework (e.g., threading, pulling, looping).

The wooden table and surrounding elements show no shifting or fluid motion; no fire, water, or smoke is present.


A person wearing a brown and white striped shirt uses a screwdriver to adjust components inside an open computer case, moving their hands to manipulate parts within the case. The camera maintains a top-down perspective throughout.

Person's hands and arms moving to manipulate wires and electronic components inside the cabinet.

Static cabinet structure with no shifting backgrounds or fluid/environmental motion (no fire, water, smoke, wind present).


A white police SUV with flashing blue and red lights remains stationary at night, partially obstructed by another police vehicle to its left. A crowd of people gathers in the background, while a uniformed officer moves toward the SUV's rear. The camera pans slightly right, maintaining a close focus on the vehicle and surrounding activity.

People are moving around the stationary police vehicles (discrete solid objects moving due to locomotion).

No shifting background elements (ground, buildings remain stationary); no fluid or environmental motion (fire, water, smoke, wind) present.


A large flock of white sheep moves across a green field toward the right; one sheep separates and runs ahead. A man in a light shirt and dark pants walks into frame from the left, approaching the sheep. The camera pans left to follow the movement of the sheep and the man.

A group of sheep is moving collectively across the grassy field, with a shepherd visible in the later frames guiding them. These are distinct, solid objects exhibiting locomotion due to physical movement.

Background elements (trees, buildings, distant hills) show no uniform shifting or fluid motion; ambient elements like dust or subtle wind effects are minimal and not dominant.


A woman with long hair in a green shirt places a red-backed card atop a triangular card house structure, then adjusts it with both hands. The man in a dark shirt picks up a card from the table and adds it to the structure; their hands move over the table as the camera maintains a steady close-up perspective on the card house.

Discrete solid objects: the woman and man (people) moving hands to interact with the card structure (building/adjusting cards). Card structure is manipulated physically by hands, showing discrete motion.

Background elements (couch, wall) are stationary; no fluid/environmental motion (fire, water, smoke, wind) observed. Static environment with consistent lighting.


A man in a gray shirt and dark pants enters the frame from the right, walking left across the grassy backyard toward a wooden shed with an open door. He passes a green shed and two chairs, moving directly toward the wooden structure. The camera remains stationary, capturing the scene from a fixed perspective with no movement.

A man is walking around the garden area, moving between the shed and other parts of the scene.

Background is static with minimal wind movement of trees (not dominant).


A person with a tattoo on their lower abdomen lies down wearing a black top. A gloved hand in black moves into frame, holding a plastic-wrapped device near the tattoo. A bearded person leans in, positioning the device against the abdomen. The camera remains close-up, capturing the procedure with minimal background details.

The discrete objects moving are the hands (wearing black gloves) and the plastic sheet being pressed onto the skin over the tattoo.

The background is static with no fluid motion (fire, water, smoke, wind) or uniform shifting. The primary motion is from a human hand moving a plastic sheet.


A hand lifts a spice container and sprinkles its contents over raw chicken pieces arranged on a kitchen counter, with additional spice jars visible in the background. The chicken remains stationary as the spices fall onto its surface. The camera maintains a fixed close-up perspective during the action.

The person's hands are moving to handle the spice container and sprinkle spices onto the raw meat. The hands and spice container are discrete solid objects in motion.

No shifting background or fluid/environmental motion (fire, water, wind) observed. Background elements (bottles, containers) are stationary.


A person in a blue parka adjusts their harness with assistance from another individual in a red jacket, then dons a blue helmet and begins to walk on snow. The camera focuses on their crampon-equipped boots before the person descends into a crevasse, captured from a top-down perspective as they move into the icy opening.

Discrete solid objects (people) exhibit motion: a person adjusting a belt, a child reaching toward a red object, a foot with a ski boot stepping on ice, and a person skiing. These motions are caused by explicit physical forces (locomotion and manipulation).

The background consists of static snow and ice with no significant environmental motion (e.g., wind, flowing water, or smoke). Snow appears still and undisturbed, ruling out dominant fluid or atmospheric effects.


A man in a blue shirt and black shorts lifts a barbell with red weight plates from chest height to overhead, then lowers it. The camera remains stationary, capturing the motion from a frontal perspective.

The person performing a weightlifting motion (lifting and lowering a barbell) exhibits discrete, solid object movement driven by physical forces (muscular exertion).

Background elements (gym walls, equipment, floor) show no uniform shifting or fluid motion; no fire, water, smoke, or wind visible.


A hand with light skin tone interacts with an ATM screen, sequentially pointing and pressing various transaction buttons including "Get Cash," "Get Balances & Statements," and "Deposit," while moving across the screen's options. The hand remains in front of the ATM interface, which displays transaction choices. The camera maintains a close-up perspective focused on the screen and hand interaction throughout.

A discrete human hand is moving (tapping, pointing) to interact with the machine's screen interface. This is a solid object in motion due to physical locomotion.

No shifting backgrounds or fluid/environmental motion (fire, water, wind) observed. The background consists of a static machine interface with no environmental fluid dynamics.


A person in a green shirt and blue jeans kneels beside a light brown cow, milking it into a metal container. The camera pans down to focus on the container filled with milk, then returns to the person continuing to milk the cow as the cow shifts slightly. The background includes a wooden fence and dirt ground.

Person milking a cow: person's hands and body move as they milk, cow's legs and body shift slightly.

No shifting background or fluid/environmental motion (fire, water, wind) observed. Background (wooden fence, ground) remains static.


RAW CAPTION: Got it, let's tackle this. First, the video shows a roasted chicken in a baking dish. The first frame is a close-up of the chicken with lemon and potatoes. Then, a hand with a cloth takes it out of the oven. Next, the chicken is inside the oven, then a close-up of the golden brown skin.

Need to follow the rules. Focus on motion and behavior in chronological order. Main subject is the chicken. Describe appearance: golden brown, whole, with lemon slices and potatoes. Spatial relationships: in the baking dish, inside the oven.

Start with the initial scene: chicken in baking dish with lemon and potatoes. Then, hand with cloth removes it from oven. Then, chicken is back in oven? Wait, no. Wait, the sequence: first frame is chicken in dish, then hand takes it out (frame 2), then it's inside oven again (frame 3), then close-up of skin.

Wait, the video frames: [0.0] shows chicken with lemon and potatoes. [1.4] a hand with cloth is holding the dish, pulling it out of oven. [2.5] chicken inside oven (back in?), but text says "roast until golden brown". Wait, maybe the process: roasting until golden, then taking out. Wait, frame 1 is the chicken in the dish (before roasting?), then frame 2 is taking out (so it's after roasting). Then frame 3 shows it inside the oven again? Wait, no, maybe the steps: the chicken is in the oven, being roasted, then when it's done, taken out.

Wait, the first frame: chicken in dish with lemon and potatoes, maybe before putting in oven. Then frame 2: hand with cloth takes the dish out of oven. Then frame 3: chicken inside oven (maybe after putting back? But the text says "roast until golden brown", so the action is roasting, then taking out. Wait, the sequence:

0.0 - chicken in dish (maybe in oven, but the first frame shows it with a light brown color, maybe during roasting). Then 1.4 - hand with cloth pulls the dish out of oven. 2.5 - chicken inside oven again? Wait, no, the text says "8. Roast until golden brown" which is a step. So the process is: roast until golden (so the chicken is in the oven, then when done, taken out). So the video shows the chicken roasting, then being pulled out, then maybe inside the oven again? Wait, maybe the sequence is:

First, the chicken is in the oven, roasting. Then, a hand with a cloth removes the baking dish from the oven. Then, the chicken is shown inside the oven again? Wait, no, that doesn't make sense. Wait, the frames:

[0.0] shows the chicken in the baking dish, but maybe it's in the oven (since it's roasting). Then [1.4] a hand with cloth is holding the dish, pulling it out of oven. Then [2.5] the chicken is inside the oven (but that's the same as before? Or maybe it's a different shot). Wait, maybe the sequence is: the chicken is being roasted in the oven, then the dish is removed (frame 1), then shown inside oven (frame 2) but that's redundant. Hmm.

Alternatively, the video is showing the process: the chicken is in the baking dish, then being put into the oven (but no, frame 0 shows it in the dish, then frame 1 shows the hand taking it out of oven). Wait, maybe the correct chronological order:

- The chicken is in the baking dish with lemon slices and potatoes.

- A hand wearing a cloth glove pulls the baking dish out of the oven.

- The chicken, now golden brown, is inside the oven (wait, no, that's the same as before. Wait, maybe it's the chicken in the oven, then being removed. So the sequence is: the chicken is roasting in the oven, then removed. So the motion is: chicken in oven, then dish is pulled out, then chicken is shown (still in the dish, now outside oven).

Wait, the first frame is chicken in dish, maybe before putting in oven. Then frame 2: hand takes it out. Then frame 3: chicken inside oven again? No, that's confusing. Let's look at the description.

The user provided the frames as:

[0.0] Close-up of roasted chicken with lemon slices and potatoes in a baking dish.

[1.4] A hand with a cloth glove pulls the dish out of the oven.

[2.5] Chicken inside oven (but the text says "roast until golden

The main discrete object is the chicken, which is moved by a hand (wearing a cloth) from the oven to a tray. The chicken is solid and the motion is due to explicit human handling.

The background (oven and countertop) is static. No significant fluid or environmental motion (fire, water, wind) is present. The video focuses on the chicken being handled.


A person in a white hooded sweatshirt drinks from a black-and-white water bottle while seated at a table, then places the bottle down and directs their focus to a laptop positioned in front of them. The background features a kitchen with wooden cabinets and a countertop with floral arrangements. The camera remains stationary throughout.

A person wearing a hooded sweatshirt is drinking from a glass, placing the glass on the table, opening a laptop, and interacting with it. These are discrete actions by a solid object.

The kitchen background is static. There is a brief visual effect resembling fire in the upper right area (around 2.5-3.5 seconds), but it is not dominant and likely an artifact. No significant fluid or environmental motion.


RAW CAPTION: Got it, let's tackle this. The video shows a hand with a wooden stick or something holding a small object, maybe a cube, over a glass of milk. The hand is moving the object into the milk. First, the hand is above the glass, then lowers the object into the milk. The glass is on a wooden surface, with a wooden lid next to it. Need to describe the motion: hand holding a small brown cube on a thin stick (maybe a toothpick?), lowers it into the milk, and the cube sinks or something. Chronological order: start with hand over glass, then the object is lowered into milk. Spatial: glass is center, lid is to the right. Background is wooden table. Camera is top-down, static. Let's check rules: focus on motion, appearance. The main subject is the hand and the cube. Describe appearance: hand is light-skinned, small brown cube on a thin stick. Motion: hand lowers the cube into the milk. Spatial: glass is on wooden surface, lid is to the right of the glass. Camera is top-down, no movement. Keep it concise. Let's structure it: A hand holding a small brown cube on a thin stick lowers it into a glass of milk placed on a wooden surface. To the right of the glass, a round wooden lid rests. The hand gently inserts the cube into the milk, causing slight ripples. The camera remains stationary in a top-down perspective throughout. Wait, but need to be concise. Let's see. Maybe: A hand with a light skin tone holds a small brown cube attached to a thin stick, lowering it into a clear glass filled with white milk. The glass sits on a wooden surface, with a round wooden lid positioned to its right. The hand slowly submerges the cube into the milk, creating gentle ripples. The camera maintains a static top-down view. But check if "attached to a thin stick" is right—maybe "on a thin stick" (the stick is holding the cube). Also, the cube is brown, glass is clear, milk is white. Need to mention the action step by step. Let's check the video frames: first frame hand is holding cube over milk, then lowers it into milk. So the motion is lowering. Let's make sure it's chronological: hand holds cube above milk, then lowers cube into milk. So the caption should describe the action in order. Let's try: A hand holding a small brown cube on a thin stick lowers it into a clear glass of white milk placed on a wooden surface. To the right of the glass, a round wooden lid rests. As the cube is lowered, it gradually submerges into the milk, causing slight ripples. The camera remains stationary with a top-down view. Wait, but "gradually submerges" is part of the motion. Also, check the appearance: the cube is brown, the stick is thin, the glass is clear, milk white, lid wooden. Need to be concise. Maybe: A hand with a light skin tone uses a thin stick to lower a small brown cube into a clear glass filled with white milk on a wooden surface. To the right of the glass, a round wooden lid is positioned. The cube slowly sinks into the milk, generating gentle ripples. The camera stays in a static top-down perspective. But "uses a thin stick" might be better as "holds a small brown cube on a thin stick". Let's see the example output format. Need to make sure it's a paragraph, concise. Let's draft: A hand holds a small brown cube on a thin stick and lowers it into a clear glass of white milk resting on a wooden surface. A round wooden lid lies to the right of the glass. As the cube is submerged, ripples form in the milk. The camera remains stationary in a top-down view. Check rules: focus on motion (lowering cube), appearance (brown cube, clear glass, white milk, wooden lid), spatial (lid right of glass), camera (top-down, static). Yes. Remove redundant words. Let's make it tighter: A hand lowers a small brown cube on a thin stick into a clear glass of white milk on a wooden surface. To the right of the glass, a round wooden lid rests. The cube gradually submerges into the milk, creating gentle ripples. The camera maintains a static top-down perspective. That's concise. Let's check if all rules are met. a) Motion: lowering cube into milk, submerging. b) Appearance: brown cube, thin stick, clear glass, white milk, round wooden lid. c) Spatial: lid to the right of glass. d) Camera: top-down, static. e) Background minimal (wooden surface is essential). f) No text, characters. g) No reasoning. So this should work.
</think>

A hand is seen dropping a small solid object (likely a cube) into a bowl of liquid. The hand moves to release the object, and the object sinks into the liquid, demonstrating solid-to-liquid interaction.

The wooden surface and lid in the background show no uniform shifting, indicating no camera-induced motion. The liquid in the bowl exhibits minor ripples from the dropped object but is not a dominant fluid motion (e.g., flowing water or wind), so it does not meet the 'ambient_environmental' threshold.


RAW CAPTION: Okay, let me tackle this video captioning task. So, the user wants a concise paragraph in chronological order focusing on the motions and behaviors of the main subjects. The rules say to avoid text recognition and stylistic analysis, so I shouldn't mention the "SIMPLE BOOK BINDING TECHNIQUE USING 3 HOLES" text.

First, looking at the frames provided. The video starts with a top-down view of a white book-like object with three holes, a spool of thread, scissors, and other tools on a brown surface. Then hands enter the frame. The hands open the book, showing the pages. The main action here is the hands manipulating the book. They open it, maybe showing the holes, and then close it. The background has those tools but the user says to keep background minimal unless essential. So maybe just note the presence of the tools without detailing them.

Wait, the first frame has the book lying open with three holes. The next frames show hands moving the book, opening it to reveal the pages. So the chronological order is: the book is placed, then hands adjust it, open the pages to show the holes, and then close it again. The camera is top-down throughout, no movement mentioned. The hands are manipulating the book, so their motion is turning the pages. The book is white, has three holes. The tools are around but not the focus.

I need to describe the motion step by step. Start with the initial setup, then hands entering, adjusting the book, opening to show the holes, closing. The key is the order: hands move the book, open it, close it. Mention the book's appearance (white, three holes), hands' actions (turning, opening). Camera is top-down, static. Don't mention the text. Keep it concise.

Check the rules: avoid text recognition, so no mentioning the title. Keep background minimal. So maybe the background is the brown surface with the tools, but maybe only mention the tools if necessary. The user says "unless essential for understanding motion". The tools might not be essential here, but the video is about book binding, so maybe the presence of the tools is part of the context. However, rule e says to keep background descriptions minimal. So perhaps just say the book is on a surface with other items nearby but not detail them.

Wait, the first frame shows the book with a spool of thread and scissors to the right. So maybe the background has those items but since they're not the main subject, just note their presence as minimal. But the instructions say "keep background descriptions minimal unless essential". So probably don't mention the spool or scissors unless they affect the motion. Since the hands are interacting with the book, maybe the tools are just part of the setting. But the user says to be minimal.

The main action is the hands moving the book. So the caption should focus on that. Let's structure it:

The video shows a top-down view of a white book with three holes placed on a brown surface. Two hands enter the frame, adjust the book's position, and open its pages to reveal the holes. The hands then close the book, maintaining a static overhead camera angle throughout.

Wait, but the exact steps: first frame shows the book open (since it's labeled as a book with holes), then hands manipulate it. Wait, the initial frame shows the book lying flat with three holes. Then the hands open the book, so turning the pages. Wait, the video starts with the book flat, then hands open it to show the inside. So the motion is opening the book, turning pages, then closing.

Wait, looking at the frames:

[0.0] The book is flat, pages open? Wait, no, the first frame shows the book with the pages spread out, but the holes are visible. Wait, the description says "a white book-like object with three holes". So it's a stack of paper with holes punched. Then hands are moving it.

In frame 0, the book is open, showing the holes on the left and right pages. Then hands adjust it, perhaps flipping it over or opening the pages. The next frames show hands opening the book to reveal the inside, then closing it.

So chronological order: initial state (book laid flat with three holes visible), hands enter, open the book to show the pages, then close it.

So the caption should describe the hands opening the book (turning the pages), then closing it. The book is white, has three holes. Camera is top-down, static.

Let me write that:

A top-down view shows a white book with three punched holes lying on a brown surface. Two hands enter the frame, open the book's pages to display the holes, and then close it, all while the camera remains stationary overhead.

Wait, the problem says "briefly describe their appearance and number (

Hands manipulating a white board (discrete, solid object) with holes, exhibiting locomotion via physical force application.

No shifting background elements; no fluid/environmental motion observed (no fire, water, smoke, or wind).


Two women stand at a table; one wears dark clothing with a headscarf, the other a light shirt and pink skirt with a headscarf. The woman in light shirt reaches toward a candle on the table, adjusts it, then withdraws her hands. The other woman remains facing her. The camera remains stationary with no movement.

The two people (an older woman and a younger individual) are moving: the older woman bends and reaches to handle objects on the table, while the younger person observes and may assist. Their motion is due to explicit physical actions (e.g., grasping, lifting), and the objects on the table (plates, bowls) are being moved by their hands.

The background (wall, table, and objects on the left) is static. The candle flame is present but not dominant; it is a minor ambient effect without being the primary motion.


A man in a white shirt and dark vest pushes an orange wheelbarrow across a gravel yard, starting near a red fence and moving toward the right side of the frame; he passes wooden planks and orange cones while the camera follows his motion in a smooth tracking shot.

The man (wearing a white shirt and dark pants) and the red/orange wheelbarrow are solid, discrete objects moving due to the man's locomotion and pushing force across the ground.

The background (red building, silo, and ground) remains stationary in the real world with no uniform shifting or fluid/environmental motion (fire, water, wind) observed. Trees are static and do not exhibit significant wind-induced movement.


RAW CAPTION: Got it, let's break this down. The video shows a child doing movements on a mat. First, the child is in a pose with one leg up. Then the screen goes dark for a second. Then the child walks back, stands on the mat, and does another pose. The background is a white door. The child is wearing a pink top and gray pants. The camera is stationary, looking at the scene from the front.

Need to follow the rules: chronological order, motion, appearance, spatial, camera. Don't mention background unless essential. So start with the initial pose, then dark frame (but that's a frame, maybe say "a dark frame interrupts"), then child walks, positions, does arm movements. Appearance: child, pink top, gray pants. Spatial: in front of white door. Camera is static.

Let's structure:

A child in a pink long-sleeve shirt and gray pants performs a high kick on a black circular mat in front of a white double door. The frame darkens briefly, then the child walks back onto the mat, raises both arms, and lowers them to a standing position with feet apart.

Wait, check the sequence. The first frame: child is on the mat, one leg up, arms out. Then frame 2 is dark. Frame 3: child walks in (from back to front, maybe? Wait, the video starts with child in pose, then dark, then child walking towards the camera? Wait the third frame shows child walking towards the camera, so moving from back to front. Then frame 4: child is on mat, arms out. Frame 5: child is in another pose.

Wait, the video has timestamps:

0.0: child on mat, one leg up, arms out.

1.0: dark frame (maybe black screen or darkened).

2.0: child walks towards camera (from back of room to front, so moving towards the camera's position).

3.0: child stands on mat, arms extended.

4.0: child does a kick or move.

5.0: child in another pose.

So chronological:

Starts with a child in a pink shirt and gray pants executing a high kick on a black mat in front of a white door. The scene darkens briefly, then the child walks toward the camera across the mat, stops, extends both arms forward, then transitions into a new movement pose.

Check rules: no text, no named characters, just motion. Keep background minimal: white door is essential for setting, so mention "in front of white double door".

Camera perspective: static, front view.

Let's draft:

A child in a pink long-sleeve top and gray pants performs a high kick on a black circular mat positioned in front of a white double door. A dark frame interrupts, then the child walks forward onto the mat, extends both arms to the sides, and lowers their arms to a standing position with feet apart.

Check if "white double door" is correct. The door has panels, so "white double door with small glass panels" but rule e says minimal background. Maybe just "white double door" is okay.

Wait the video's first frame: door has multiple panels, but minimal description. So "white double door" is enough.

Also, the child's orientation: first pose, then walking towards camera.

Let's make sure chronological:

1. Child starts in a pose on mat (high kick).

2. Dark frame.

3. Child walks toward camera.

4. Child stops, extends arms.

5. Child does another move.

So the caption should list these steps in order.

Final draft:

A child wearing a pink long-sleeve shirt and gray pants performs a high kick on a black circular mat in front of a white double door. A dark frame follows, then the child walks forward onto the mat, extends both arms forward, and lowers them to a standing position with feet apart.

Check if that's concise. Maybe "extends both arms forward" vs "to the sides". The video shows at frame 3, the child is standing with arms extended out, so "extends both arms forward" might be correct. Wait, in frame 3, the child is walking towards camera, then stops. The description says "extends both arms forward" but maybe the arm positions vary.

Alternatively, "a child in a pink top and gray pants performs a high kick on a black mat before a white door, then a dark frame appears, followed by the child walking toward the camera, stopping to extend both arms, and transitioning to a standing pose."

But need to be concise.

Let's see the rules: "concise, chronological paragraph". So:

A child in a pink shirt and gray pants begins with a high kick on a black mat in front of a white double door. A dark frame interrupts the scene. The child then walks toward the camera,

A child in a red shirt and gray shorts performs dancing motions, including arm swings, jumps, and leg kicks, with clear locomotion.

Background elements (white door, circular rug) remain stationary throughout; no fluid/environmental motion (fire, water, smoke, wind) detected.


A person in a light green shirt shapes a small white dough ball on a gray mat while another individual adds contents from a white bowl to the dough. The dough remains centered on the mat, with the bowl positioned to the right. The camera captures the scene from a close, slightly shaky angle, focusing on the hands and dough.

Two hands manipulate a solid dough object on a countertop; the dough is deformed through physical force applied by the hands, showing clear discrete object interaction.

Background elements (kitchen cabinets, countertop) are static and show no uniform shifting. No fire, water, smoke, or wind-driven motion observed.


A wrist with a white strap watch moves away, revealing a red surface with a black-strapped watch, a black tool, and a white tool. Hands enter, adjust the black-strapped watch, and pick it up to rotate it, displaying its front and side angles. The camera maintains a top-down view throughout, focusing on the watch and hands against the red background.

Hands are moving a watch: picking it up, turning it over, and examining it. This is physical manipulation of a solid object.

Background is a static red surface with no shifting. No environmental fluids (fire, water, smoke, wind) observed.


A child’s arm moves across the frame, then two children sit on a bed; a girl in a tie-dye shirt sits to the right while a boy in a blue shirt holds a container of orange objects in front of her, shifting the container toward her. The boy then extends his hand toward the container. The camera is handheld with slight movement, focusing on the children’s interaction against a dimly lit room with minimal background details.

The food item (breaded, likely chicken) is being held and moved by the boy. The boy's hand and the girl's hand also move as they interact with the food.

The background (couch, wall with framed pictures, stuffed animal) is stationary and shows no shifting or fluid motion. No fire, water, smoke, or wind is present.


A person in a dark blue shirt with yellow text holds a pineapple, then uses a knife to cut it while turning the fruit. Another individual stands nearby. Multiple pineapples rest on a wooden stand in front of a white vehicle. The camera maintains a close perspective, following the cutting motion with slight movement.

Discrete solid objects (pineapples, hands, knives) are moving: hands cut pineapples, revealing inner sections, and manipulate the fruit's structure through explicit physical forces.

No shifting background elements or fluid/environmental motion (fire, water, wind) observed; the background (white vehicle, ground) remains static relative to the scene.


A crowd of dancers in various costumes, including black with neon green accents, black with orange pants, and black with white detailing, move energetically in a courtyard. The dancers interact dynamically, some facing forward while others shift positions; a person in a black outfit with orange pants is visible near the center, and others in black-and-white attire move beside them. The camera pans left and right, following the group’s motion, capturing their synchronized steps against a backdrop of trees and buildings.

Two main dancers in distinctive costumes (black/green and black/white) are actively moving—spinning, arm movements, and interacting with each other. Other crowd members exhibit minor locomotion (e.g., clapping, shifting positions) but lack explicit physical forces.

The background (trees, buildings, and static crowd elements) shows no significant shifting or uniform motion. Minimal tree swaying is visible but not dominant; no fire, water, or smoke present. Background remains stationary with no ambient environmental motion.


A pair of hands, one adorned with a ring, manipulates a green and beige knitted item, adjusting its fabric by pulling and repositioning it. The hands move the item closer to and away from the body, showcasing the textured pattern and color gradient. The camera maintains a close-up perspective focused on the hands and the item, with minimal background details visible.

Discrete solid objects (hands) are actively manipulating a woven textile object, showing motion due to physical forces (pulling, adjusting the fabric).

No shifting backgrounds or fluid/environmental motion (fire, water, wind) observed. The background consists of static dark fabric and the woven object, with no uniform displacement.


A woman in a white gown with a flowing veil and holding a purple bouquet stands facing a man in a dark suit at a church altar, with a woman in a gold dress to their left. The woman in white shifts position, adjusting her veil as she interacts with the man, while other guests in dark attire remain in the background. The camera pans slightly right, tracking their movement within the ornate church interior.

The bride (in white dress and veil), groom (in suit), and guests (e.g., woman in yellow dress) are moving down the aisle via locomotion; their motion is distinct and trackable as solid objects.

The church interior background (walls, arches, paintings) shows no uniform shifting, indicating no dominant ambient environmental motion (e.g., no fire, water, or wind effects).


A group of children, some wearing cowboy hats and colorful clothing, and several adults gather in a room. The children move in a circle, shifting positions and gesturing, while adults stand to the periphery observing. The camera maintains a steady perspective with a slight pan to the right throughout the sequence.

Multiple children and adults are moving in discrete, solid-object motion—shifting positions, turning, and interacting—without fluid or environmental influence.

The background elements (walls, decorations, door) show no uniform shifting or environmental motion (e.g., no fire, water, smoke, or wind). The environment remains stable throughout the sequence.


RAW CAPTION: Got it, let's tackle this. First, the video shows a group of people in a pool, right? The main subjects are the swimmers. Let's break it down chronologically.

In the first frame, there are multiple people in the water. One person is swimming towards the left, maybe? Wait, the video starts with a person in a yellow life vest standing on the right, facing the water. Then, a swimmer (maybe a child) is moving through the water, creating splashes. Then another swimmer joins, and the person in the yellow vest stays in place, observing. Also, other people are in the background, but the main action is the swimmers moving.

Wait, the rules say focus on motion and behavior in chronological order. So start from the beginning. The video starts with several people in the pool. A swimmer (let's see, color? The first swimmer might be a child, maybe blonde? But we can't be sure, but since it's a caption, we need to be concise. The key is the motion.

First frame: A child (or person) swims through the water, moving left. Then another person (maybe a child with a yellow float) joins. Then more people in the background. The person in the yellow vest (adult) stands on the shore, facing the water. Others approach from the right.

Wait, the main motion: The swimmer moves through the water, creating splashes. Then maybe a second swimmer moves towards the right? Wait, the video has frames where the swimmer is moving, then another appears. Let's check the frames:

Frame 0: Person in yellow vest stands at right edge. Water with several swimmers (some in distance). One swimmer is splashing.

Frame 1: The splashing swimmer continues, now a bit further. The person in yellow vest stays.

Frame 2: The swimmer is moving left, maybe? Then another person (smaller, child) in yellow (wait, the person in yellow vest on shore has a child in front of him. Wait, the person in yellow vest (adult) is on the shore, with a child in yellow vest in front. So maybe the swimmers are moving towards the shore.

Wait, the first swimmer (maybe a child) is in the water, moving towards the left side of the frame. Then, as the video progresses, the swimmer is closer to the shore. Wait, the adult in yellow vest is standing on the right, facing the water. The child in yellow vest is coming into view from the right. So the main motion is the swimmers moving through the water towards the shore, and the adults (in yellow vests) observing.

Let's structure the caption:

Chronological order: The video starts with several people swimming in a pool. A swimmer (likely a child) moves through the water, creating splashes, while other swimmers are visible in the background. The adult in a yellow life vest stands at the edge of the pool, facing the water, with a child in a similar vest approaching from the right. As the video progresses, the swimmer continues moving toward the shore, and the observer remains stationary.

Wait, but need to keep it concise. Let's check the rules: focus on motion and behavior in chronological order, describe appearance (color, size), spatial relationships, conclude camera perspective.

Camera perspective: The camera is stationary, showing a medium shot of the pool area, with the observer in the foreground.

Main subjects: The swimmer (child) in the water, moving left (toward shore), and the adult in yellow vest standing on the shore. Others are background swimmers.

So the caption:

A child swims through the water, creating splashes, moving left toward the shore while other swimmers are visible in the background. An adult wearing a yellow life vest stands on the edge of the pool, facing the water, with a child in a similar vest approaching from the right. The camera remains stationary throughout, capturing the scene from a medium distance.

Wait, check rules: exclude text recognition, named characters, stylistic analysis. So "child" is okay as appearance (size, maybe, but not name). The adult's life vest is yellow.

Also, spatial relationships: the swimmer is in the water, adult is on the shore (in front of the swimmer? Or to the right? Wait, the adult is standing on the shore, so the swimmer is in the water, and the adult is to the right of the swimmer? Wait, the frames show the adult in yellow vest (adult) on the right side of the frame, facing the water. The swimmer is moving left, so the swimmer is in front of the adult? Wait, the adult is on the shore, so the swimmer is in the water, and the

People are swimming in the water, moving through the water via locomotion (swimming), with clear trajectories visible in the sequence.

The rocky wall in the background remains stationary across all frames, indicating no significant camera motion. Water surface ripples are present but secondary to the movement of discrete objects.


A person with long brown hair faces the camera, holding a small black object with a white label in their right hand, which has turquoise-painted nails. They rotate the object slightly to display it, while the background shows blurred shoe displays. The camera maintains a close-up perspective with minimal movement.

discrete_object_physics | ambient_environmental | camera_motion | ego_motion | static

Briefly describe what discrete, solid objects are moving.

Briefly check for shifting backgrounds or fluid/environmental motion (fire, water, wind).


A person wearing a yellow shirt and white pants stands inside a fenced baseball training area, holding a baseball. They raise the ball upward with both hands, then bring it down while extending their arm forward in a pitching motion. The background includes green netting and an outdoor field visible through the fence. The camera remains stationary, capturing the action from a direct frontal perspective.

A baseball player (wearing a yellow 'BELHAVEN' jersey and white pants) is performing discrete arm movements: raising hands to face, rotating arms in circular motions, and returning to a neutral stance. These are solid-object motions driven by the player's voluntary actions.

The background (green netting, baseball field, distant trees, and structures) shows no significant shifting or fluid motion. No fire, water, smoke, or wind-driven environmental effects dominate the scene; trees appear stationary.


Two fencers in white attire move toward each other on a red and white striped strip, advancing with one lunging while the other defends; a referee in black enters from the right to observe. Camera remains stationary.

Two fencers in white uniforms engage in combat, executing lunging, parrying, and footwork motions; a referee in black attire walks across the frame. All objects exhibit discrete, solid motion due to athletic locomotion and direct physical interactions.

The building facade, mat markings, and banner remain static throughout; no shifting background elements observed. No fire, water, smoke, or wind present in the scene.


A shirtless man with light blonde hair sits as a blonde woman with tied hair shaves his neck. She moves the razor downward, pauses when the man looks toward her, then resumes shaving. The woman remains in front of him throughout. The camera is static with slight shake.

The woman is moving a razor across the man's face, a discrete solid object motion.

Static background with no fluid or environmental motion (no fire, water, smoke, wind).


Two hands manipulate a peach-colored triangular paper against a solid blue background. The hands first open the paper to reveal a star-shaped form, then adjust it to display the structure, subsequently fold it back into a triangular shape, and finally press down to smooth the creases. The camera maintains a close-up, static perspective throughout, focusing on the hands and paper.

Discrete solid objects (a pair of hands and an orange paper object) are moving. The hands manipulate the paper through folding, unfolding, and rotating actions, demonstrating explicit physical forces and locomotion by the hands.

The background is a solid blue surface with no visible shifting or environmental elements (e.g., fire, water, wind). The blue background remains static throughout the video, indicating no ambient environmental motion.


A person in a green long-sleeve top and black shorts, barefoot, performs a circular swing motion with a red object. Starting with legs spread apart, they raise the object overhead, then swing it in a wide arc while transitioning into a lunge stance with one leg extended forward. The action occurs in a grassy area near a tree, with the camera remaining stationary at a low angle throughout.

A person swinging a bat (discrete solid object) performs locomotion and collision-like motion during the swing. The bat's trajectory and the person's body movement are distinct physical actions.

Background elements (trees, signpost) remain stable with no uniform shifting or fluid motion (fire, water, smoke, wind). Leaf movement is minimal and not dominant.


A hand holding a brush applies makeup to an eye, moving the brush across the eyelid while holding a small dark bottle; the scene transitions to a medium shot of two people, one standing to the left holding an object and the other seated to the right, with the camera cutting from close-up to medium view.

The person in the first scene is moving their hand and brush to apply makeup. The standing person in the second scene is talking and making hand gestures (if any), which are movements of discrete objects.

The background in both scenes (green foliage in the first, wall and plant in the second) is static. There is no fire, water, smoke, or wind-driven motion observed.


A person wearing a gray t-shirt, brown shorts, and multiple necklaces sits on stone steps, playing an acoustic guitar with visible designs. They strum the strings while intermittently looking around and adjusting their head position, continuing to play as the camera maintains a close perspective with slight movement.

The person is actively moving their hands to strum and fret the acoustic guitar. The guitar itself is moved slightly during playing, and the person's body remains seated but demonstrates controlled hand motions.

Background elements (building facade, ground, and door) are static with no uniform shifting. No fluid or environmental motion (fire, water, smoke, wind) observed in the scene.


A person in dark clothing ascends a vertical pole, reaching the top before descending. The pole stands in the foreground of a bustling mall, with pedestrians moving in the background. The camera remains stationary, capturing the climber's vertical motion from a fixed perspective.

Discrete human subjects (people) moving through the mall space due to locomotion; their movements are tracked as solid objects with clear bounding boxes.

Static indoor mall environment with no fluid/environmental motion (e.g., fire, water, smoke, wind); background structures (signs, railings) remain stable across frames.


A man wearing a black cap and dark clothing repeatedly swings a metal bat against a glass door, causing it to shatter into numerous fragments. He strikes the glass from the front, with pieces breaking outward as he continues the motion. The camera remains stationary, capturing the action from a fixed angle.

A person is actively chipping paint off a wall using a tool, exhibiting deliberate locomotion and force application.

Static background elements (wall, railings) show no uniform shifting or fluid motion; no fire, water, smoke, or wind visible.


A person wearing a beige hat, white sleeveless shirt, and light blue shorts stands on a green shuffleboard court with white markings, holding a cue. They step forward, swing the cue to push a disc along the court, and move slightly away as the disc travels. The camera follows the person’s motion with a slight handheld shake. Background includes a grassy area and distant buildings.

A person (wearing a hat, white sleeveless shirt, blue shorts) is moving by walking and pushing a disc with a shuffleboard cue. The disc is a solid object but is only visible at the start and then moves off-screen or out of the frame.

No shifting background; buildings and grass are static. No fluids, fire, or significant wind motion observed.


A man in a light shirt and tie sits across from a woman with dark hair wearing a gray jacket at a table. The man extends his hands, takes a piece of paper from the woman, gestures outward while speaking, and then brings the paper closer to his face to examine it. The woman reacts by opening her hands in response to his gesture. The background shows a room with a wall-mounted shelf and a doorway. The camera remains static throughout.

Two people (man and woman) exhibit discrete physical motions: the man gestures with hands while speaking, and both interact with table objects (e.g., plates, food, cups). Their movements are voluntary and solid-object-specific.

No shifting background or fluid/environmental motion observed. Walls and hanging decorations remain static throughout the clip; no fire, water, smoke, or wind is present.


RAW CAPTION: Okay, let me tackle this video captioning task. First, I need to understand the requirements. The user wants a concise chronological paragraph describing the video, focusing on motion and behavior of main subjects in order. Let me look at the provided frames.

The first frame shows a man in a dark suit and tie, standing in an office with framed pictures on the wall. He's speaking. Next, he opens his mouth wide, maybe shouting. Then the scene cuts to an outdoor view of a building with snow, maybe a church or cathedral, with power lines. Then a busy street with traffic lights and cars. Finally, a street sign for "Scranton" with snow on the ground.

Wait, the user said to exclude text recognition. So even though there's a sign that says Scranton, I shouldn't mention the text. But the user's rules say to exclude named characters or text recognition, so maybe just note the sign's presence without reading it.

Let me check the rules again. Rule f says exclude text recognition, named characters, stylistic analysis. So I shouldn't mention the sign's words. So when describing the fourth frame, just say a street sign with "Scranton" (but no, wait, rule f says exclude text recognition, so perhaps just say "a street sign" without specifying the text. Wait, the example in the rules might not have the text. Wait, the user provided an example where the fifth frame is the street sign, so maybe the caption should describe it as "a weathered street sign" without the text. But the user's example output might have included the text, but the rules say not to. Hmm, the user says "Exclude text recognition", so the caption shouldn't mention any text on signs or objects. So in the fourth frame, the sign is just a street sign, maybe with some text, but since we can't read it, we just say "a weathered street sign".

Now, structuring the chronological order:

1. Man in suit and tie speaking in an office setting (framed pictures on wall, maybe a whiteboard).
2. Man opens mouth wide, possibly shouting.
3. Cut to outdoor scene: a tall, ornate building with snow on ground, power lines visible.
4. Then a busy street with traffic lights, cars, and a street sign.
5. Finally, a view of a street sign in snowy area.

Wait, the frames given are:

[0.0] man in office

[1.4] man shouting

[2.5] building with snow

[3.6] busy street

[4.7] street sign with snow

So the sequence is:

First, man in office speaks. Then he shouts. Then the scene changes to an outdoor building with snow. Then a busy street with traffic. Then a street sign in a snowy area.

But the user wants chronological order. So each frame in order.

Now, for the caption, need to describe each frame in order.

Let me outline:

1. A man in a dark suit and tie stands in an office, speaking. (appearance: dark suit, tie; spatial: office with framed pictures on wall)
2. He opens his mouth wide, appearing to shout. (motion: mouth opens, action)
3. The scene shifts to an outdoor view of a tall, ornate building with snow-covered ground, power lines visible against a clear sky.
4. The camera then shows a busy urban street with multiple vehicles stopped at traffic lights, a street sign visible.
5. Finally, the camera pans to a weathered street sign partially covered in snow, with trees and buildings in the background.

Wait, but the user says "briefly describe their appearance and number". So for each subject:

- Man: dark suit, tie, standing in office.
- Then the man shouting.

Then the building: tall, ornate, with snow.

Street: busy, traffic lights, cars.

Street sign: weathered, snow-covered.

Also, need to mention spatial relationships. For example, the street sign is in front of trees and buildings.

Camera movement: The transitions are cuts, not camera movements. The user's rules say "conclude with camera perspective and movement". The first three frames are the man in office, then cuts to outdoor scenes. So maybe the camera cuts from indoor to outdoor, then to street, then to sign. So the camera movement is cut transitions.

Wait, the user says "conclude with the camera perspective and movement". So the last part should mention how the camera moves. But the example frames are static images. However, the user provided a sequence where the scene changes, so the camera cuts from one scene to another.

So in the caption, after describing all the scenes, end with the camera movement. But since it's a sequence of cuts, the camera movement would be "cut to outdoor scenes, then

Discrete solid objects include the man (indoor scene, facial movements due to speech), cars in the traffic jam (locomotion), and the clock tower (static structure). Motion is attributed to the man's actions and cars moving through traffic.

No shifting backgrounds or fluid/environmental motion (fire, water, wind) observed. Static elements (walls, signs, buildings) are stationary in each scene, with no evidence of fluid motion or wind-driven phenomena.


RAW CAPTION: Got it, let's break this down. First, the video shows a person handling raw chicken. Let's see the frames. In the first part, there's a person in a light-colored shirt using a meat grinder. The grinder is metallic, and they're pushing chicken pieces into it. Another person's hands are holding the output of the grinder into a blue container. There's a tray of chicken pieces next to the grinder. Then, the camera shifts to show two people: one in a yellow shirt and another in a striped shirt, working with chicken.

Need to focus on motion and behavior in chronological order. Start with the first part: the person grinding chicken, others handling. Then the camera shows more people.

Appearance: The main subjects are people in work clothes, light and yellow shirts. The chicken is raw, brownish. The meat grinder is metallic. Blue container.

Spatial relationships: The grinder is on the left, tray of chicken to the right, blue container below the grinder.

Background: Minimal, kitchen setting, maybe industrial.

Camera: Initially close-up on hands and grinder, then wider to show two people.

Now, structure the caption. Start with the main action: a person uses a meat grinder to process raw chicken, pushing pieces into the grinder while another person collects ground chicken into a blue container. Then the camera shifts to show two individuals in a kitchen setting, handling raw chicken pieces near the grinder and tray.

Check rules: chronological order, motion, appearance, spatial, camera perspective.

Let me draft:

"Two people in a kitchen setting process raw chicken: one in a light-colored shirt operates a metallic meat grinder, pushing chicken pieces into it while another person, whose hands are visible, collects the ground chicken into a blue container. A tray of raw chicken pieces sits to the right of the grinder. The camera starts with a close-up of the grinding action, then widens to reveal two individuals working together at the counter, with minimal background details visible."

Wait, need to be concise. Let's tighten.

"A person in a light-colored shirt uses a metallic meat grinder to process raw chicken, pushing pieces into the grinder while another person collects the ground chicken into a blue container. A tray of raw chicken pieces rests to the right of the grinder. The camera transitions from a close-up of the hands and grinder to a wider shot showing two individuals working in a kitchen setting."

Check if all rules are met. Motion: grinding, collecting. Appearance: light shirt, blue container, raw chicken. Spatial: tray to the right. Camera: close-up then wider. Background minimal.

Yes. Let's make sure it's chronological: first the grinding action, then the camera shows two people.

Another check: "Two people in a kitchen setting process raw chicken: one in a light-colored shirt operates a metallic meat grinder, pushing chicken pieces into it while another person, whose hands are visible, collects the ground chicken into a blue container. A tray of raw chicken pieces sits to the right of the grinder. The camera starts with a close-up of the grinding action, then widens to reveal two individuals working together at the counter, with minimal background details visible."

Wait, "two people" — but in the first frames, maybe one person's hands are visible. Let's see the original video: first frames show one person's hand on the grinder, another person's hand on the tray. So two people. The second frame might show both.

The caption should mention the number: "Two people...".

But need to be concise. Let's see the output format.

Final draft:

"Two people process raw chicken in a kitchen: one in a light-colored shirt operates a metallic meat grinder, pushing pieces into it while another person collects ground chicken into a blue container. A tray of raw chicken pieces rests to the right of the grinder. The camera starts with a close-up of the grinding action, then shifts to a wider shot showing both individuals working at the counter."

Check length. Maybe shorten:

"In a kitchen, one person in a light-colored shirt uses a metallic meat grinder to process raw chicken pieces, pushing them into the grinder while another person collects the ground chicken into a blue container. A tray of raw chicken pieces sits to the right. The camera transitions from a close-up of the grinding action to a wider shot revealing two individuals working together at the counter."

Yes, that's concise. Check all rules:

a) Motion: grinding, collecting. Chronological order.

b) Appearance: light-colored shirt, metallic grinder, blue container, raw chicken.

c) Spatial: tray to the right of grinder.

d) Camera: close-up then wider shot.

e) Background minimal.

f) No text, names.

g) Internal thinking but no output reasoning.

Looks good.
</think>

<caption_output>In a kitchen

Hands and arms of people are moving to handle and transfer pieces of meat between containers and trays.

Background elements (kitchen counter, sink, walls) show no uniform shifting or fluid/environmental motion (fire, water, smoke, wind).


RAW CAPTION: Okay, let's tackle this video captioning task. First, I need to understand the user's requirements. They want a concise, chronological paragraph describing the video, following specific rules. Let me read through the rules again.

Rule a says focus on motion and behavior of main subjects in chronological order. The video shows a person in a grassy field. From the frames, the person starts standing, then does a backflip or somersault, and ends up lying on the grass. So I need to describe that sequence step by step.

Rule b: Briefly describe appearance and number. The person is wearing a gray sleeveless shirt, brown pants, and dark shoes. Just one person here.

Rule c: Mention spatial relationships. The background has houses, but the user said to keep background minimal unless essential. The person is on the grass, with houses in the distance. Maybe mention the field and houses briefly.

Rule d: Conclude with camera perspective and movement. The camera seems to be fixed, maybe a slight shake. Looking at the frames, it's a static shot but the motion might cause a slight shake. The camera is probably at ground level or slightly elevated.

Rule e: Minimal background. Houses in the distance, but not too much detail.

Rule f: Exclude text, names, stylistic analysis. So no mention of "funny" or any other interpretation.

Now, structuring the caption. Start with the person standing, then performing the flip, landing on their back. The sequence: start upright, then moves into a backward roll, lands on the grass. Mention the clothes: gray shirt, brown pants.

Check the chronological order: first frame, person standing, arms raised. Second frame, mid-flip, body inverted. Third frame, more inverted. Fourth, landing. Fifth, lying down.

So the caption should go: A person in a gray sleeveless shirt and brown pants performs a backward roll on a grassy field, starting upright with arms raised, rotating mid-air, and landing supine on the grass. Houses are visible in the distance. The camera remains stationary with minimal movement.

Wait, need to check if "backward roll" is accurate. The video shows them flipping backward, maybe a somersault. But the user said "backflip" but the frames show a roll. Maybe it's a somersault or a backward roll. Let me check the frames again.

In frame 0, standing, arms up. Frame 1, leaning back. Frame 2, upside down. Frame 3, continuing. Frame 4, landing on back. So it's a backward somersault or a flip. "Backward roll" might not be precise. Maybe "backflip" but the person lands on the back. Wait, backflips usually land on feet, but here they land on the back. Maybe it's a backward somersault or a roll.

Alternatively, "performs a backward somersault" but the person ends up lying on the back. So maybe "executes a backward roll" or "backflip followed by landing on back". Hmm. The exact movement might be a bit unclear, but the key is the motion from standing to mid-air to lying on the ground.

The caption should describe the motion step by step. So: A person in a gray sleeveless shirt and brown pants stands on a grassy field, then executes a backward roll, rotating their body while airborne, and lands supine on the grass. Houses are visible in the background. The camera remains stationary with slight movement.

Wait, the rules say to mention spatial relationships if relevant. The houses are in the background, so that's minimal but necessary for context.

Check the output format: must be within <caption_output> tags, and the caption must be concise. Let me try to condense it.

"A person in a gray sleeveless shirt and brown pants performs a backward somersault on a grassy field, starting upright with arms raised, rotating mid-air, and landing on their back. Houses are visible in the distance. The camera remains stationary with slight shake."

Wait, "backward somersault" might not be precise. Maybe "backflip" but since they land on the back, it's a flip that lands on the back. Maybe "backflip" is okay. But the exact term might not matter as long as it's clear.

Alternatively: "A person in a gray shirt and brown pants executes a backward flip on a grassy field, beginning upright, rotating their body over their head, and landing on their back. Houses are visible in the background. The camera remains fixed with minimal movement."

But "backward flip" might be the right term. Let's go with "backward flip" since it's the motion. The user's sample response probably expects "backflip" but maybe "backward roll" is better. Hmm.

Wait, in the frames

A single person performs a controlled backward fall: starting upright, swinging arms back, then collapsing onto the grass while maintaining body orientation. Motion is due to intentional physical actions (locomotion/falling).

The background (houses, sky, grass) is static with no visible fluid motion (fire, water, smoke) or wind-driven environmental effects. Grass remains still, and background elements do not shift uniformly.