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: 'The item of greatest value to me is WATER. Before thinking about an offer I need to know what your priorities are and you need to know mine in order to conclude something fair for both of you.' 'My priority is FOOD. How about I get 3 food and you get 3 water?' 'What is the least valuable item for you?'
Utterance: 'least for me is water'
A: 
No