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: 'Ok, do you have any interest in any fire wood?' 'I do need firewood, we cook over open flames. 😮How you get 2 water, 1 food and 1 firewood?' 'How about if I give you 3 food for 3 waters, and then we split the firewood?'
Utterance: 'I do require at least one water, hiking is very physical demanding. Also there are 3 firewoods?'
[A]: Yes


[Q]: Context: 
Utterance: 'Hi how are you? I have a few medical issue and do need to stay warm so fire wood is important to me. What is important to you? '
[A]: Yes


[Q]: Context: 'hello!' 'Hi how are you today? ' 'am fine and you?'
Utterance: 'I am good. Do you have any preferences on which items you would like most?'
[A]:
No