RAW CAPTION: Got it, let's tackle this video caption. First, I need to observe the main subjects and their actions chronologically.

The video shows several workers. Let's note their actions. In the first frame, there are people working on a construction site. The background has a yellow building, some debris, and a road. The main subjects are the workers. Let's list them:

- A person in a yellow cap and dark shirt is crouching near the left side, maybe handling bricks.
- Another person in a dark shirt and jeans is moving, then bends down to adjust bricks.
- A person in an orange shirt is standing near the right, maybe holding tools.
- There's also a person in a dark shirt and jeans who moves around, possibly assisting.

Wait, the captions need to be chronological. Let's check the sequence. From the frames:

Frame 0: Workers are in various positions. The person in yellow cap is crouching on the left, another is sitting or kneeling near the center, the one in orange is standing right, and the person in dark shirt and jeans is standing near the orange person.

Frame 1: The camera might pan a bit, the yellow-capped worker is still crouching. The person in dark shirt (original right) moves towards the center, bends down. The person in orange might shift position.

Frame 2: The person in dark shirt is now bending, the orange person is still there. The yellow-capped worker is still working.

Frame 3: The person in dark shirt is moving towards the center, the orange person is near the bricks, the yellow-capped worker is still crouching.

Frame 4: The person in dark shirt (now in dark shirt and jeans) is standing up and moving towards the left, the yellow-capped worker is still crouching. The person in orange is standing by the bricks.

Frame 5: The person in dark shirt (now in dark shirt and jeans) is moving towards the left, near the bricks. The yellow-capped worker is still working. The person in orange is near the bricks.

Wait, the key motions: the main actions are workers moving around, adjusting bricks. Let's focus on the chronological order of their movements.

First, the person in yellow cap and dark shirt is crouching on the left, working. Then, the person in dark shirt and jeans moves from the right towards the center, bends to adjust the bricks. The person in orange shirt is standing near the bricks, maybe observing. Then, the person in dark shirt continues moving, adjusting bricks. The person in yellow cap remains crouched working. Another person (in dark shirt) moves left, maybe picking up bricks.

Wait, the description should be concise. Let's outline:

- Four workers: one in yellow cap (crouching, left), one in dark shirt (kneeling center), one in orange shirt (standing right), one in dark shirt/jeans (moving).

Sequence: The yellow-capped worker crouches on the left, adjusting bricks. The dark-shirted worker moves from the right, bends to adjust bricks. The orange-shirted worker remains near the bricks. The dark-shirt/jeans worker moves towards the center, then left, handling bricks. The camera pans slightly left, following the movements.

Wait, the camera movement: in the video, the camera shifts position, maybe panning left. Let's check the frames. The first frame is the scene, then as the video progresses, the camera moves left, showing more of the left side.

So, the camera is panning left throughout.

Now, the caption needs to be chronological. Let's structure it:

The video starts with several workers on a construction site: a person in a yellow cap and dark shirt crouches left, adjusting concrete bricks; a person in a dark shirt kneels center, working; another in an orange shirt stands right near bricks; a person in a dark shirt and jeans stands near the orange-shirted worker. As the video progresses, the dark-shirt/jeans worker moves left toward the center, bends to adjust bricks, while the yellow-capped worker remains crouched left. The orange-shirted worker stays near the bricks, and the kneeling worker shifts position. The camera pans slightly left, capturing their movements.

Wait, but need to be concise. Let's check the rules: "concise, chronological paragraph". Let's make it shorter.

"Multiple workers engage in bricklaying: a worker in a yellow cap and dark shirt crouches left, adjusting bricks; a person in dark shirt kneels center; another in orange shirt stands right near bricks. A fourth worker in dark shirt and jeans moves left, bends to adjust bricks, then walks toward the left edge. The camera pans left, following their movements."

Wait, but check the number of workers. Let's count

Three workers (one in yellow hard hat, one in orange shirt, one in dark shirt) are moving: the orange-shirted worker shifts position while kneeling, the dark-shirted worker walks across the frame and bends to work, and the yellow-hard-hat worker maintains a bent posture while working. Their motion is due to physical locomotion and task execution.

No significant ambient environmental motion (fire, water, smoke, wind). Background elements (yellow wall, concrete ground with grid pattern) remain stable and do not shift uniformly across frames, indicating a fixed camera.


A person in a dark blue shirt and gray shorts sits on the right side of a football field. Five individuals stand in a line across the field: one in red, one in blue, one in orange, one in gray, and a child in dark blue. The child begins running toward the left, moving across the field toward the center, while the others remain stationary. The camera maintains a fixed ground-level perspective with minimal movement, capturing the child's motion against the field background.

Several people in the background exhibit subtle movements (e.g., shifting positions, minor gestures) while a person in the foreground adjusts posture.

Background elements (trees, fence, field lines) remain stationary across frames with no fluid/environmental motion (e.g., fire, water, wind) observed.


A person wearing a dark jacket grips a black steering wheel, their hand moving slightly as they adjust their hold. The individual then shifts their hand to pull a black seatbelt across their torso, securing it in front of their body. The background features a blue seat and gray interior paneling. The camera maintains a close-up perspective, focusing on the hand and steering wheel before shifting to capture the seatbelt adjustment, with minimal movement.

A person's hands (discrete solid object) are manipulating a seatbelt (solid object). Motion involves hand movements unfastening and retracting the seatbelt, driven by explicit physical action.

The background consists of a static blue seat and window frame with no fluid or environmental motion (e.g., no fire, water, smoke, or wind). Background elements show minimal shift, confirming stability.


A person in a dark blue polo shirt with white trim stands in front of a mounted dartboard. They hold darts, step back, and release one dart toward the board. The dartboard is positioned against a wall with minimal background detail. Camera remains stationary throughout.

A person (darts thrower) moves their arm to release a dart, which travels as a solid projectile toward the dartboard. The dart's trajectory is clearly defined by the throw.

The background (dartboard, wall, hanging cloth) remains static with no shifting or fluid motion. No fire, water, smoke, or wind-induced environmental effects are present.


A hand moves a black circular object over a colorful circuit board with red, green, blue, and purple components. The hand lifts a silver component from the board, revealing underlying parts. The camera remains close to the board, shifting slightly as the hand manipulates the objects. Background details are minimal, focusing on the electronic components.

A hand is manipulating a circuit board, moving it and rotating it to display different sides.

No shifting background; static internal structure of the device. No fire, water, smoke, or wind detected.


At an indoor ice rink, numerous people in winter clothing skate in various directions; some hold hands while others glide alone, with individuals wearing pink, black, and green jackets. They move across the ice surface, occasionally changing positions, as the camera pans left with a slight shake, capturing the dynamic crowd.

Discrete solid objects (people) are moving: skaters gliding on ice, holding hands, changing directions, and interacting. Motion is consistent with locomotion (ice skating) and minor collisions between individuals.

The background elements (blue-lit barriers, ice rink walls) show minimal shifting; no fluid or environmental motion (fire, water, smoke, wind) observed. Background remains relatively static throughout frames.


A person wearing a white polo shirt, dark shorts, and green-yellow athletic shoes stands in a gym, holding a kettlebell at waist level; they bend their knees to lower into a squat position, then straighten their legs to return to standing. The background includes gym equipment like exercise balls and a weight machine, visible behind the person. The camera remains static throughout, capturing the subject from a front-facing perspective.

A person is performing a controlled squat exercise, moving their legs and torso vertically while maintaining a stable posture. The motion is discrete and solid, consistent with deliberate physical locomotion.

The background (gym walls, equipment, door) remains stationary throughout the clip; no fluid, gaseous, or wind-driven motion (e.g., fire, water, smoke) is present.


A person in an orange shirt plays a pink ukulele, strumming with their right hand while adjusting fingers on the fretboard with their left hand. The ukulele remains positioned in front of them as their hands move rhythmically. The camera captures a close-up view with slight 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 teal shirt uses their right hand to place slices of salmon and other fish on white rice atop dark green nori, then uses a spoon to transfer a small amount of sauce from a white bowl positioned to the right of the sushi. The camera shifts from a close-up of the hands and ingredients to a wider shot revealing the person standing in a kitchen with a stainless steel oven and wooden shelves visible in the background, gesturing toward the sushi.

The hands are moving (pressing rice and adding ingredients in the first scene) and the woman's arms/hands are moving (gesturing in the second scene). These are discrete solid objects.

The background in both scenes is static (wooden table and kitchen elements). No fire, water, smoke, or wind present.


A small child in a light yellow shirt sits at a table with an adult wearing a white top and gray cardigan. The child reaches toward a multicolored birthday cake (green, blue, pink layers), then moves their hand toward a slice of cake on a pink plate while the adult supports them. The child looks around as the plate with the cake slice remains in front. A person in pink pants stands in the background. The camera maintains a static, eye-level perspective.

A child is moving their arms (reaching for cake, interacting with plate), and an adult's hands are seen assisting with the plate. These are discrete solid objects undergoing physical motion from explicit actions.

Background elements (e.g., people in pink pants, room walls) show no uniform shifting or fluid motion. No fire, water, smoke, or wind effects observed.


A man with a dark beard, wearing a red plaid shirt and blue suspenders, initially turns his head left before facing forward while speaking. He remains seated in front of a bookshelf filled with books. The camera maintains a static medium shot throughout the sequence.

A person (solid object) exhibits motion through speech-induced head and facial movements, consistent with discrete physical locomotion.

No shifting background elements (bookshelves remain static across frames), no fluid or environmental motion (fire, water, smoke, wind) detected.


A hand holding a blue and black pressure washer nozzle moves it left to right along the edge of a white roof structure, spraying water to clean the surface. The hand, light-skinned, adjusts the nozzle’s position while maintaining contact with the roof’s edge. The camera remains stationary, positioned below and looking upward at the cleaning action, capturing the motion against the white siding background.

A hand holding a spray nozzle moves across the top edge of the shelving unit; the nozzle is directed and repositioned by the hand, indicating explicit human-controlled motion.

Static shelving unit with no shifting backgrounds or fluid/environmental motion (no fire, water, smoke, or wind). The shelf and supports remain fixed throughout.


A young man in a blue t-shirt and dark pants holds a black jacket while moving through a kitchen, passing seated and standing individuals near cabinets and a sink. He turns to face the camera, smiling, as the camera follows his motion with a slight shake, capturing the group in the background. The scene includes kitchen elements like a sink and wooden cabinets, with people observing.

Discrete solid objects: A person in a blue shirt performing locomotion (dancing/moving arms) and another person in a checkered shirt. Motion is due to physical forces from human movement.

Background elements (cabinets, refrigerator, walls) remain stable with no uniform shifting or fluid motion (no fire, water, smoke, or wind).


A hand holding a black stamp with a wooden handle presses it onto a white sheet of paper, creating a red and pink feather-like pattern. The hand lifts the stamp, then flips the paper over to reveal its blank back. The hand repositions the stamp to the left side of the paper and presses it again, producing a new pattern. The camera remains in a static top-down perspective throughout, focusing on the hand and paper against a light wooden surface.

A hand holding a brush applies red paint to a white paper, creating a leaf-like pattern. The hand and brush are discrete solid objects moving due to deliberate physical action (painting).

The wooden surface background remains static and unshifted throughout the video. No environmental fluids (water, fire, smoke) or wind-driven motion are present.


A man in a white lab coat leans over a sink, washing his hands. The scene shifts to a group of people, some in blue and white shirts, clapping their hands. The camera pans to capture the group's clapping motion, with minimal background details visible. The camera transitions from a static shot of the man to a pan across the clapping group.

A group of people clapping—hands moving in discrete, rhythmic motions due to muscle contraction. The person in the lab coat is stationary in the initial kitchen scene.

In both scenes, static background elements (kitchen cabinets, curtains, walls) show no uniform shifting or fluid motion. No fire, water, or wind-driven phenomena are present.


A small child in a pink polka-dot jacket and white knit hat pushes a metal shopping cart through a grocery store aisle, facing away from the camera. An adult in dark jeans and sneakers walks up behind the child, joining them as they continue moving forward; the child maintains their hold on the cart while the adult walks slightly to the child's left. The pair proceeds together along the aisle, the camera following closely from a slightly low angle with minimal movement, capturing their motion against the backdrop of store shelves.

A child in a pink jacket and gray pants is pushing a shopping cart, while an adult (visible from waist down) walks behind the cart. Both subjects move through the store aisle due to deliberate locomotion (child pushing cart, adult walking).

Shelves, floor, and store fixtures remain stationary and do not exhibit fluid motion (e.g., no fire, water, or wind). Background elements show no uniform shifting, indicating stable environmental conditions.


A person applies blue painter's tape in intersecting lines across a light wall, pressing the tape firmly into place. Subsequently, a hand uses a roller to move across the wall within the tape-defined sections, applying paint to create triangular shapes. The camera focuses closely on the hands and tools throughout, capturing detailed motions against the plain wall background.

A hand and a roller (tool) are moving: the hand presses blue tape onto the surface, and the roller smooths the tape. These motions are due to explicit physical actions by the person.

The background (white surface with blue tape pattern) is static; no shifting or uniform motion observed. No fire, water, smoke, or wind present.


RAW CAPTION: Okay, let's tackle this video captioning task. First, I need to understand the rules properly. The user wants a concise, chronological paragraph focusing on the motion and behavior of the main subjects. The main subjects here are people, so I should note their actions step by step.

Looking at the video frames provided. The first frame shows three people standing on a concrete surface. The second frame might show one person moving, but I need to check the sequence. Wait, the video starts with three individuals. Wait, no—looking at the first frame: there's a person in a black jacket and jeans moving towards the right, then another person in a black jacket and jeans is walking towards the camera, maybe. Wait, the frames are a bit shaky, so I need to track the movement.

Wait, the first frame [0.0] shows three people. The person in the black jacket and jeans is moving. Then in frame [1.4], it's similar but maybe the person is moving towards the camera. Wait, the video is vertical, so maybe it's a top-down view? The user says the camera perspective needs to be mentioned.

Let me parse each frame. The first frame: three people standing. Then the next frames show someone moving towards the camera, then possibly turning around. Wait, the description says the person is moving and then interacts with another person. Let's see:

Frame 0.0: Three people in black jackets and jeans. One is moving towards the camera. Frame 1.4: Maybe the same person is now in a different position. Wait, the user provided five frames (0.0 to 4.7 seconds). Let me check the timestamps.

Wait, the user provided the frames as [0.0], [1.4], etc., up to [4.7]. So the video is 4.7 seconds long. Let's describe the sequence.

At 0.0s: Three individuals stand on a concrete surface near a building. One person (black jacket, jeans) faces left, another (black jacket, jeans) faces right. The third is further back. At 1.4s: The rightmost person (black jacket, jeans) moves left, approaching the center. The other two remain. At 2.5s: The person moves closer to the center, possibly interacting with another person. At 3.6s: They are near each other, maybe talking. At 4.7s: The person in the center turns slightly away.

Wait, but the user says to describe in chronological order. So first, the initial positions, then the movements. Also, need to note appearance: color (black jackets, jeans), number (three people). Spatial relationships: one person moving towards another, maybe.

Camera perspective: The video seems to have a shaky, top-down view? Wait, the first frame is a bit vertical. Wait, the user mentioned "top-down" as a possible perspective. But the video might be handheld. The rules say to mention camera perspective and movement. The sample output includes "top-down, slight shake".

Wait, looking at the user's example, they have a description that starts with the people moving, then camera perspective. Let me check the exact requirements.

The output should be a concise paragraph, chronological. Mention motion, appearance, spatial relationships. Conclude with camera perspective and movement.

So, step by step:

1. Start with the initial scene: three people, maybe two in the foreground, one in the background.

2. Describe their actions: one person (black jacket, jeans) moves towards the center, interacts with another, then turns.

3. Camera is top-down, with some shake.

Wait, the video frames seem to be captured from above, maybe a high angle. But the movement is from a top-down perspective. Let me check the frames.

In the first frame, the person is in the foreground moving towards the camera (since the perspective is top-down, the person is below the camera). Wait, maybe the camera is positioned above them, looking down. So the concrete surface is under the camera. So the video is a top-down view.

In the first frame, three people are standing. One person (black jacket, jeans) is moving towards the center. Then another person (black jacket, jeans) moves towards them, possibly to interact. Then they stand close together, maybe talking. Then the person turns away.

Wait, the frames might show a person moving towards another, then turning. Let me try to map it.

0.0s: Three people stand on concrete. Two in black jackets and jeans, one further back. One person (right side) moves left towards the center.

1.4s: The person continues moving towards the center, approaching the other two.

2.5s: The person is now close to the center person, maybe touching

Two people: one person (right) performs discrete movements (bending, arm gestures, possibly throwing), while the other (left) remains stationary. Motion is due to intentional locomotion/physical actions.

Static concrete background (walls, ground) shows no shifting or environmental fluid motion (e.g., no fire, water, or wind effects).


RAW CAPTION: Got it, let's tackle this. First, the video shows a person in a garden. The main subject is a person wearing a brown shirt, blue pants, and green boots. They're using a hoe to dig into the soil. Let's check the sequence. At the start, the person is holding the hoe, then they move it down, dig, and the soil is being displaced. The background has a green wheelbarrow, some plants, and a black bag of soil. The camera is probably static, as it's focusing on the person's actions. Need to describe chronologically: the person starts by digging with the hoe, moving the tool through the soil, and the soil piles up. Spatially, the wheelbarrow is to the left, the bag is to the right. The camera is steady, top-down? Wait, the description says "top-down" but maybe it's a medium shot. Let's see the frames: the camera seems to zoom in slightly, but the instruction says mention camera perspective. The rules say "conclude with camera perspective and movement". So the camera is static, maybe slightly moving down? Wait, looking at the frames, the camera starts at a wider shot and then zooms in a bit, but the main movement is the person's digging.

So structure: Person in brown shirt, blue pants, green boots uses hoe to dig soil; shifts position, steps forward, digs deeper; soil is displaced, forming a pile. Background has green wheelbarrow (left) and black soil bag (right). Camera remains steady, slightly zooming in on the digging action.

Wait, the rules say "keep background descriptions minimal unless essential". So maybe mention wheelbarrow and bag as background elements but briefly. Let's check the output format. It needs to be a chronological paragraph.

First, the person is standing, holding a hoe. Then they dig into the soil, moving the hoe down, soil is turned. Then the person steps, continues digging. So:

A person wearing a brown shirt, blue pants, and green boots uses a hoe to dig into the soil, moving the tool downward to displace earth, which forms a pile to the right. The individual shifts their stance, stepping forward and continuing to dig deeper. To the left of the person, a green wheelbarrow is visible, and a black soil bag sits to the right. The camera remains static, with a slight downward tilt focusing on the digging motion.

Wait, "slight downward tilt" – the camera might be top-down? But in the video, it's probably a ground-level shot. Let's see the frames: the camera is positioned so that the person is central, looking down at the soil. So maybe "top-down perspective". Wait, the user says "camera perspective and movement". Let's check the example. The first frame shows the person, and the camera angle is from above, looking down at the soil. So top-down. Then, maybe the camera moves slightly closer or zooms in. The instruction says "conclude with camera perspective and movement".

So let's structure it:

A person in a brown shirt, blue pants, and green boots uses a hoe to dig into the soil, moving the tool downward and displacing earth, creating a pile to the right. The individual shifts stance, steps forward, and continues digging. To the left, a green wheelbarrow is positioned; a black soil bag is to the right. The camera maintains a top-down perspective, slightly zooming in on the digging action.

Wait, but the rules say "briefly describe their appearance and number (color, size, orientation)". The person is the main subject, so describe their clothing. Also, check the actions: first, they are holding the hoe, then dig. The soil is displaced, so the action is digging.

Let's write it out chronologically: The person begins by holding a hoe over the soil, then lowers the tool into the ground, digging to displace earth. They step forward, continuing to dig deeper, which causes more soil to pile up. The green wheelbarrow is to the left, and the black soil bag is to the right. The camera stays in a top-down view, gradually zooming in on the digging process.

But need to be concise. Let's make sure to include all parts: motion, appearance, spatial, camera.

Final draft: A person wearing a brown shirt, blue pants, and green boots uses a hoe to dig into the soil, moving the tool downward to turn earth and form a pile to the right. The individual shifts position, stepping forward and continuing to dig deeper. To the left, a green wheelbarrow sits; a black soil bag is positioned to the right. The camera maintains a top-down perspective, slightly zooming in on the digging action.

Check if background is minimal: yes, wheelbarrow and soil

The person (wearing dark clothing and boots) and the shovel they are using exhibit discrete motion as they dig into the soil, with visible limb and tool movement due to physical effort.

The background elements (green wheelbarrow, vegetation, dirt pile) show no significant shifting or fluid motion; no fire, water, or wind-driven effects are visible.


tags, no extra text. Avoid text recognition or named characters. Keep it brief.  Let me structure it:  - Start with the girl's action: raises arm with fork, then brings it down to eat. - Her appearance: pink hoodie, dark hair. - Background: restaurant setting with chairs, but minimal details. - Camera: slight shake, static perspective.  Wait, the first frame shows her arm up, then she's eating. So chronological order: raises arm, then lowers to eat. Maybe "a young girl in a pink hoodie raises her right arm holding a fork above her head, then lowers it to eat noodles from a plate."   Check if spatial relationships are needed. She's sitting at a table, maybe someone's arm is visible on the right. The rule says "mention spatial relationships if relevant." Since there's another person's arm on the right, maybe note that.   Wait, the user example in the problem statement has a person's arm visible on the right. So maybe "a young girl in a pink hoodie with dark hair tied in a ponytail sits at a table in a restaurant, raising her right arm holding a fork above her head before lowering it to eat noodles from a plate. A person’s arm is visible to her right."   But need to keep it concise. Maybe "A young girl in a pink hoodie with dark hair tied in a ponytail sits at a restaurant table, raising her right arm holding a fork above her head, then lowers it to eat noodles from a plate. A person’s arm is visible to her right. The camera maintains a steady perspective with slight shake."  Check the rules: exclude text recognition, no named characters. The background is minimal. So the restaurant setting is okay as minimal background.  Wait, the first rule says focus on motion and behavior of main subjects. So the main subject is the girl, so describe her actions. The person's arm is secondary but maybe relevant spatially.   So the caption should be: A young girl wearing a pink hoodie with dark hair tied up sits at a restaurant table, raising her right arm holding a fork above her head, then lowering it to eat noodles from a plate. A person's arm is visible to her right. The camera remains mostly static with slight shake.  Check if chronological: raises arm, then eats. Yes. Mention her appearance: pink hoodie, dark hair. Spatial: person's arm on the right. Background minimal (restaurant). Camera: static with slight shake.  I think that's it. Let me make sure not to include any text recognition or stylistic analysis. Avoid words like "looks like" or "seems." Just describe the observed actions and appearance. </think>  <caption_output>A young girl in a pink hoodie with dark hair tied in a ponytail sits at a restaurant table, raising her right arm holding a fork above her head, then lowering it to eat noodles from a plate. A person’s arm is visible to her right. The camera remains mostly static with slight shake.

A child in a pink shirt is moving their arms and hands to eat food, with discrete motion of the arms/hands and food being manipulated.

Background elements (chairs, tables) are static and show no uniform shifting; no fluid/environmental motion (fire, water, smoke, wind) is present.


A woman in a blue sports bra, teal leggings, and purple sneakers starts standing with feet apart, then lowers into a squat position with hands on knees before returning to a standing stance. Red dumbbells and a silver barbell appear in circular icons to her left and right, respectively, against a plain white background. The camera remains static throughout.

A person (wearing blue athletic wear) is performing a squat exercise. The motion is discrete, involving the entire body moving in a controlled manner. The person starts standing, lowers into a squat, and returns to standing. The two circular icons (dumbbell and measuring tape) are initially present but then disappear, but they are not moving objects.

The background is a uniform white with no shifting elements. There is no fire, water, smoke, or wind present. The circular icons (dumbbell and measuring tape) are static and then disappear, but this is a scene change, not environmental motion.


A small child in a floral dress and purple socks runs toward a pink balance bike held by an adult, then sits on a gray rug and adjusts position while the adult positions the bike. The scene is viewed from a top-down perspective with minimal camera movement.

Discrete solid objects: Child (crawling, sitting, standing, moving tricycle), adult (bending, standing, pushing tricycle), and tricycle (being pushed and moved by child/adult). Movements driven by physical forces (locomotion, pushing).

Background elements (rug, floor, window) remain static with no uniform shifting. No fire, water, smoke, or wind present; environment is calm and still.