The input is taken from a negotiation between two participants who take the role of campsite neighbors and negotiate for Food, Water, and Firewood packages, based on their individual preferences and requirements. Given an utterance and recent dialogue context containing past 3 utterances (wherever available), output Yes if the utterance contains the self-need strategy, otherwise output No. self-need is a selfish negotiation strategy. It is used to create a personal need for an item in the negotiation, such as by pointing out that the participant sweats a lot to show preference towards water packages.

Input: Consider Input: Context: 'I am dong just fine! and you?' 'Pretty good! I am excited about going camping though. When we split this, what do you need the most?' 'We are all about the food over here! what about you?'
Utterance: 'I really need the water! How do you feel about each of us getting 3 of what we need the most?'

Output: Yes

Input: Consider Input: Context: 'Camping yay!' 'Hello! how are you? hoping today is finding you well. I was wondering if I can get all 3 of your Firewood, I am willing to trade for all 3 waters. I am camping with 40 kids, its our annual youth camp. its rainy season too, I really want to ensure I have enough dried wood with us. need lots of firewood for the amount of cooking I will be doing, keep the camp warm, and specially to keep those pesky bugs away. what do you think?'
Utterance: 'I could really use the firewood too, it will be very cold where we are going. Since it will be cold, we will not be drinking much water. How about 2 firewood for you, 3 food for me?, '

Output: Yes

Input: Consider Input: Context: 'Hi we would like you to consider giving us all of the rations for the trip.' 'hello, that could be a good idea, but I think I need more rations' 'How important are they to you? We would like to get a good mix, preferably more food.'
Utterance: 'I need more food and water, you see I am diabetic, I need to eat many small meals'
Output: Yes