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.
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Question: Context: 'Great, this is going to be a fun trip. So I get 2 water, 2 food and you get 1 water, 1 food and 3 firewood?' 'Yes, I cant wait to set off. It sounds like you have it all correct. I hope we both have a great trip. ' 'I hope it doesn't get cold out since I won't have any firewood. You need it more than I do though, so you should have it all.'
Utterance: 'Thank you. I hope I don't run out of water. I get dehydrated easily but I want us both to be comfortable. '

Answer: Yes


Question: Context: 
Utterance: 'HI! Are you excited to go on this trip?'

Answer: No


Question: Context: 'How about you take all the firewood because I have the skills necessary to chop down more. I also will need three packages of food because I will be climbing a very tall mountain.' 'well i do need alot of firewood since i need it to start a fire' 'Okay, so you can take all the firewood and I take all the food. I will also need at least two waters because I had a limited supply at home.🙂'
Utterance: 'no, i will need 2 water because i need to drink it and there not much water around me'

Answer:
Yes