Input: They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die.

Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: THEN, one month after the warranty expired, the replacement charger went.

Output: [['power_supply miscellaneous', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I had to pay $100 for a universal charger for this cheap $300 laptop.

Output: [['laptop miscellaneous', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Not worth it one bit.

Output: [['laptop general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The people are frustrating to work with, the product itself is very cheaply made, and the accessories are less than satisfactory.

Output: [['laptop design_features', 'negative'], ['laptop quality', 'negative'], ['support quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Also, my sister got the exact same laptop (since they were so cheap) and after 8 months, the screen split in half just from everyday use.

Output: [['display quality', 'negative'], ['laptop price', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Apparently under the screen there are 2 little screws and when the screen gets moved back and forth, they come loose.

Output: [['laptop quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: And it is impossible to get them back in.

Output: [['laptop quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Strengths:Well-shaped

Output: [['laptop design_features', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Weaknesses:A bad videocard!

Output: [['graphics general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: After 20-30 min the screen of the notebook switched off.

Output: [['display operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It was still working, but there was nothing on the screen.

Output: [['display operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I was said it's videocard.

Output: [['graphics general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Very disappointed!

Output: [['laptop general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Didn't expect to repair it at once!

Output: [['laptop quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Don't buy this model.

Output: [['laptop general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: An absolutely hateful machine that no one should get of their own free will.

Output: [['laptop general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Mine came at $1,700 w/o a DVD burner (!).

Output: [['laptop design_features', 'negative'], ['laptop price', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The screen is framed by half- to a full-inch margin that is obviously unnecessary, reduces the screen size and increases the bulk.

Output: [['display design_features', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The 4 USB ports are nice, but the two on the side only work now and then.

Output: [['laptop design_features', 'positive'], ['ports quality', 'negative'], ['ports operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Keyboard could use some trimming.

Output: [['keyboard design_features', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Did I mention everything about it, from size to weight to keyboard screams BULK?

Output: [['keyboard general', 'negative'], ['laptop design_features', 'negative'], ['laptop general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I'm glad I made the choice to switch and buy this MAC.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The benefits were immediate!

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Awesome graphics!

Output: [['graphics general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The magnetic plug-in power charging power cord is great (I even put it to the test by accident)- excellent innovation!

Output: [['power_supply design_features', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: This laptop rocks (only wish it could run SolidWorks CAD - which Apple doesn't support)!

Output: [['laptop general', 'positive'], ['laptop usability', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I've saved a lot of time and headaches so far, using my new MacBook Pro.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I have never had any issues or problems with my MacBook Pro so far, and it is still as fast as it was when I first bought it.

Output: [['laptop general', 'positive'], ['laptop quality', 'positive'], ['laptop operation_performance', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I especially like the backlit keyboard.

Output: [['keyboard design_features', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It makes doing schoolwork at night so much easier.

Output: [['laptop usability', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It is also very lightweight, making transporting this computer very easy.

Output: [['laptop design_features', 'positive'], ['laptop portability', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The graphics on this computer are also stellar - very clear and vivid.

Output: [['graphics quality', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I use iphoto all the time, which is a great program for anyone who is into photography - amateurs and experts alike.

Output: [['software general', 'positive'], ['software miscellaneous', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The program came with the computer and works beautifully.

Output: [['software operation_performance', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I definitely will buy a Mac again if and when this computer ever fails.

Output: [['laptop general', 'positive'], ['company general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: My hp G60-244dx died after only 16 months.

Output: [['laptop quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It started out getting hot after only a few months.

Output: [['laptop quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: At 16 months it started shutting off after only 5 or 10 minutes.

Output: [['laptop operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I use a cooling pad but it doesn't help.

Output: [['laptop miscellaneous', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I took it to the shop and they said It would cost too much to repair it.

Output: [['support price', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I will have to say that I love my MacBook Pro!

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It fires up in the morning in less than 30 seconds and I have never had any issues with it freezing.

Output: [['laptop operation_performance', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: This is now my 3rd MacBook Pro and I really honestly love it!

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The MacBook Pro is very sturdy and versatile.

Output: [['laptop quality', 'positive'], ['laptop usability', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I love it!

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I even got my teenage son one, because of the features that it offers, like, iChat, Photobooth, garage band and more!

Output: [['laptop design_features', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: We are addicted to the Mac.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: This is a great laptop and I would recommend it to anyone.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The OS takes some getting used to especially after being a Windows user for so long but the learning curve is so worth it!

Output: [['os usability', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Great laptop that offers many great features!

Output: [['laptop design_features', 'positive'], ['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Lightweight and the screen is beautiful!

Output: [['display general', 'positive'], ['laptop design_features', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It is easy to operate and I have already ordered more software and gadgets for my new Rolls Royce of laptops.

Output: [['laptop usability', 'positive'], ['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Buy it, love it, and I promise you won't regret it.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: This computer is good for 10 days then it sucks for the rest of your life.

Output: [['laptop quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: You will regret it if you buy any dell.

Output: [['company general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Dell sucks

Output: [['company general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The only pro to this computer is it was under $600!

Output: [['laptop general', 'negative'], ['laptop price', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Everything is falling apart internally and externally.

Output: [['laptop quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: With in weeks of purchasing my computer is began to slow down.

Output: [['laptop quality', 'negative'], ['laptop operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I am constantly trying to uninstall programs, clean cookies, and delete unused files.

Output: [['laptop usability', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Nightly my computer defrags itself and runs a virus scan.

Output: [['laptop operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: More times that not the screen pops up saying I have a bad internet connection, or the page can't be displayed.

Output: [['laptop operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It takes me approximately 3 tries to get to each site, then after closing the browser and reopening it it actually works.

Output: [['software operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I have Vista, so I am unable to install and uninstall  some programs.

Output: [['os general', 'negative'], ['laptop usability', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I can't even install one of the 3 printers I have in my house so I am unable to print.

Output: [['laptop usability', 'negative'], ['laptop connectivity', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Externally the keys on my keyboard are falling off, after a few uses the paint is rubbing off the button below the mouse pad and where the heals of my hands sit, and the screen has a terrible glare.

Output: [['keyboard quality', 'negative'], ['mouse quality', 'negative'], ['display quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: In short I would never buy a Compaq again.

Output: [['company general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I bought this laptop on Saturday and am completely in love with it!

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It was super easy to set up and Is really easy to get used to.

Output: [['laptop usability', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The online tutorial videos make it super easy to learn if you have always used a PC.

Output: [['laptop usability', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The performance is awesome.

Output: [['laptop operation_performance', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I will never complain about the price since I believe you get what you pay for and my MacBook Pro was worth every dollar.

Output: [['laptop general', 'positive'], ['laptop price', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: With all the goodies inside this machine, it is a value.

Output: [['laptop design_features', 'positive'], ['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It is very well built.

Output: [['laptop quality', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The keyboard is top notch.

Output: [['keyboard quality', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The touch pad is among the best.

Output: [['mouse general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The screen is huge and coloful, but no LED backlighting.

Output: [['display design_features', 'negative'], ['display design_features', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The video card is great for media, and above average for gaming, but not a gamers first choice.

Output: [['graphics miscellaneous', 'positive'], ['graphics miscellaneous', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The problem I had with this unit was unresolvable.

Output: [['laptop general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It had a cooling system malfunction after 10 minutes of general use, and would not move past this error.

Output: [['fans_cooling quality', 'negative'], ['fans_cooling operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I acually believe the issue is with the Nvidia grafics card, but still requires a return.

Output: [['graphics general', 'neutral'], ['laptop general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Sorry Toshiba, but 1st impressions do count for something.

Output: [['company general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I got the black MacBook two years ago and have never regretted it.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: So this was great for me.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It has just enough RAM to run smoothly and enough memory to satisfy my needs.

Output: [['laptop operation_performance', 'positive'], ['memory design_features', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Plus it is small and reasonably light so I can take it with me to and from work.

Output: [['laptop design_features', 'positive'], ['laptop portability', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I also travel with it and it never gives me any problems.

Output: [['laptop portability', 'positive'], ['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: But I am glad to have gotten mine right before they stopped making it.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I look forward to years of use, it has held up well over the years and it fits my needs very well.

Output: [['laptop quality', 'positive'], ['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The difference is the Toshiba had a lot more memory and hard drive space.

Output: [['memory design_features', 'positive'], ['hard_disc design_features', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It's super fast and a great value for the price!

Output: [['laptop general', 'positive'], ['laptop operation_performance', 'positive'], ['laptop price', 'neutral']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I would definitely recommend checking out this laptop if you are in the market for one.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: A MONTH LATER, we reinstall the OS (Vista).

Output: [['os quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: A coupla months later, they change my hard drive.

Output: [['hard_disc quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: A month or so ago, the freaking motherboard just died.

Output: [['motherboard quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Went silently.

Output: [['motherboard quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: One night I turned the freaking thing off after using it, the next day I turn it on, no GUI, screen all dark, power light steady, hard drive light steady and not flashing as it usually does.

Output: [['laptop operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: THE MOTHERBOARD IS DEAD !

Output: [['motherboard quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: And I'm still paying the bloody financing, for a product which didn't last me at least three years !

Output: [['laptop quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I initially purchased my Macbook Pro 13" in April, and I loved it.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I was so happy with my new Mac.

Output: [['laptop general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Then the hard drive failed;

Output: [['hard_disc quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: my information was all lost (my fault, I know, but I never thought I would need to back up my information on a brand new Mac, the paragon of all computers!

Output: [['laptop miscellaneous', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: So, after Apple replaced the hard drive I enjoyed another 4 months of my new computer, until it froze this morning--completely.

Output: [['laptop operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I can't even turn it off.

Output: [['laptop operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It's catatonic.

Output: [['laptop operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Even if Apple replaces whatever needs replacing I wonder if, since I seem to be doubling the amount of time I get out of it each time it's "like new," I might have 8 months next time.

Output: [['laptop quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I would rate this computer at 5 stars, but considering it has a short life span I can only give it 1 and implore anyone looking at laptops to stay away from this machine.

Output: [['laptop quality', 'negative'], ['laptop general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Great battery, speed, display.

Output: [['battery general', 'positive'], ['laptop operation_performance', 'positive'], ['display general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It WORKS!

Output: [['laptop operation_performance', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: My house is now 100% Macbook.

Output: [['laptop general', 'positive'], ['company general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The Macbook starts fast, doesn't crash, has a fantastic display, is small and light (I have the 13.3" model), and isn't always complaining about updates, lost connections, errors, blue screens, etc.

Output: [['display general', 'positive'], ['laptop operation_performance', 'positive'], ['laptop design_features', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: THIS is what a laptop is supposed to be.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I thought the price was great for the specs.

Output: [['laptop price', 'positive'], ['laptop design_features', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: But after using it a couple of weeks, the overall operation is poor.

Output: [['laptop operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I hate the display screen and I have done everything I could do the change it.

Output: [['display general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The keyboard is too slick.

Output: [['keyboard quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I really don't like it, but I am stuck.

Output: [['laptop general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Dell Latitude d620 is not a reliable machine.

Output: [['laptop quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The battery never held a charge longer than one hour and within two months, stopped holding a charge for more than ten minutes.

Output: [['battery operation_performance', 'negative'], ['battery quality', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Later it held zero charge and its replacement worked for less than three months.

Output: [['battery quality', 'negative'], ['battery miscellaneous', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The machine is slow to boot up and occasionally crashes completely.

Output: [['laptop operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: VERY disappointing:

Output: [['laptop general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I was not aware that this product cannot display websites that contain Flash.

Output: [['laptop design_features', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Web access through the 3G network is so slow, it's very frustrating and VERY DISAPPOINTING.

Output: [['laptop connectivity', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: After purchasing this thing, I find out that I need a special interface device to connect my camera, and that it cannot be purchased at the store - only on line.

Output: [['laptop connectivity', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: HP Pavilion DV9000 Notebook PC      When I first got this computer, it really rocked.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: But as time went on I found it almost impossible to keep the thing on-line through wi-fi.

Output: [['laptop connectivity', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Eventually the screen went blank and the computer would not turn on.

Output: [['display operation_performance', 'negative'], ['laptop operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Guess I'll stay away from HP.

Output: [['company general', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: My MacBook is probably the best investment I have ever made.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I have had it for almost four years now and I have only had a few problems with it.

Output: [['laptop quality', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The most recent being that my Safari internet browser is freaking out on me, but I have just been using firefox instead.

Output: [['software operation_performance', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: I love this computer.

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Its small enough where I can take it pretty much anywhere, but still has a big enough screen to get everything done.

Output: [['display design_features', 'positive'], ['laptop design_features', 'positive'], ['laptop portability', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: The only thing that I don't like about my mac is that sometimes there are programs that I want to be able to run and I am not able to.

Output: [['software usability', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Games being the main issue.

Output: [['laptop miscellaneous', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: It drives me crazy when I want to download a game or something of that nature and I can't play it because its not compatable with the software.

Output: [['software usability', 'negative']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]


Input: Other than that I don't have one complaint in the world!

Output: [['laptop general', 'positive']]

Instruction: Task: Extracting aspect terms' aspect categories and their corresponding sentiment polarities. Input: A sentence. Output: A list of 2-tuples, where each tuple contains the extracted aspect category and their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "They gave me a hard time yet again, but their was a malfunction in the battery itself, it didn't die."  Output: [['battery operation_performance', 'negative'], ['support quality', 'negative']]