Input: The atmosphere is unheralded, the service impecible, and the food magnificant.

Output: [['ambience general', 'positive'], ['service general', 'positive'], ['food quality', 'positive']]


Input: Wonderful strawberry daiquiries as well!

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

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 term's aspect category their corresponding sentiment polarity. Supplement: "Null" means that there is no occurrence in the sentence. Example:  Input: "If your on a budget.... Save up longer.This laptop isn't worth a single cent.I couldn't even install linux on it.Windows runs very poorly.Just save your money and get something better."  Output: [['laptop general', 'negative'], ['laptop usability', 'negative'], ['os operation_performance', 'negative']]


Input: I HAVE NEVER EVER HAD SUCH AN UNPLEASANT EXPERIENCE.

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


Input: Overall the food quality was pretty good, though I hear the salmon is much better when it hasn't sat cooling in front of the guest.

Output: [['food quality', 'positive'], ['service general', 'negative']]


Input: I really loved the different and inovated touch that's the cheff gives to the food.

Output: [['food style_options', 'positive']]


Input: The food was not fresh, the sauces were bland and very oily.

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


Input: All in all, the food was great (except for the dessserts).

Output: [['food quality', 'positive'], ['food quality', 'negative']]


Input: The sangria was pretty tasty and good on a hot muggy day.

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


Input: The food was delicious but do not come here on a empty stomach.

Output: [['food quality', 'positive'], ['food style_options', 'negative']]


Input: Look, the appetizers were really good.

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


Input: Nice value.

Output: [['restaurant prices', 'positive']]


Input: Not what I would expect for the price and prestige of this location.

Output: [['service general', 'negative'], ['restaurant prices', 'neutral'], ['restaurant miscellaneous', 'neutral']]


Input: The reason there are 4 different results on citysearch for the same place is because they keep trying to start a new thread so they can stock it with positive reviews.

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


Input: I have never before eaten 40 pieces of relatively good nigiri.

Output: [['food quality', 'neutral']]


Input: I highly recommend visiting this restaurant and having dinner and drinks!

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


Input: The sushi is amazing!!!

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


Input: Hats off to the chef.

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


Input: I have to say that I am pleasantly suprised and I will most likely stop in again if I am in the neighborhood.

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


Input: We've tried before but it always packed and doesn't take reservations.

Output: [['restaurant miscellaneous', 'neutral']]


Input: The food is authentic Italian - delicious!

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


Input: The pasta penne was pretty extra buttery, creamy which means a big task to diggest.. tasty at first but i would say that i was full with a slice of pizza and 7 to count, penne...got a little moody afterwards cause was stuffed...lol

Output: [['food quality', 'negative'], ['food style_options', 'negative']]


Input: The staff was the friendliest that have seen in New York.

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


Input: Wine list selection is good and wine-by-the-glass was generously filled to the top.

Output: [['drinks style_options', 'positive'], ['drinks style_options', 'positive']]


Input: It's very spicy but not offensive.

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


Input: The Four Seasons restaurant is a great experience.

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


Input: Personally I like the margherita pizza better, but they are all good.

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


Input: This establishment is the real deal.

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


Input: After dinner the manager grabbed my boyfriend, asked him: Where are you from...maybe you dont know how things work in America...and in the end stormed away almost teareyed yelling that tips are the only thing they survive on.

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