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.

[Q]: Context: 'I am great, i am really excited about camping how about you?' 'Same here! Its my family's first time out together and we are at the camping already.' 'Nice, are there any extra supplies that you will really need?'
Utterance: 'At the camping site. Yes, I would like some water and food to refill the used packs'
[A]: Yes


[Q]: Context: 'Hi how are you today? ' 'am fine and you?' 'I am good. Do you have any preferences on which items you would like most?'
Utterance: 'yes i really need a high amount of water and food.i have firewood in excess'
[A]: Yes


[Q]: Context: 'Okay, how about if I give you 3 foods and you give me the 2 firewoods and 2 waters?' 'THanks, but I really need the water. I thought you would enjoy the food with so  many guests in your campsite. Is that a possibility?' 'I don't need 3 foods and we already agreed on 2 firewood, 1 water and 2 food. If that is not possible, I wonder if we can not make a deal '
Utterance: 'Okay.  I will agree as the firewood is very important to me. The food will also come in handy on my long hike up the mountain.  Stay safe and have fun. '
[A]:
Yes