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.

Context: 'Me too!!! I love camping! All that activity gets me wanting to indulge on snacks and then water to quench my thirst!' 'Same here.  It looks like we both can use some water and snacks.  Do you have any preferences of how much you will need?  I was hoping to get 2 or 3 waters and 1 or 2 foods?' 'Me too. How about you can have 2 water and 1 food if you give me 2 firewood?'
Utterance: 'Ok.  So I'll get 2 water and you'll get 1 water?'
No