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: 'Then it is good deal.  I need two wood, 1 food, and 1 water.' 'I really need all the food, I have a lot of people to feed' 'I will provide you the food, but I am asking only one for my people.'
Utterance: 'I am giving you all the water,  how come you need the food? '
[A]: No


[Q]: Context: 
Utterance: 'It's been so cold these last few days, I'm worried that I didn't bring enough wood for the next few nights.'
[A]: Yes


[Q]: Context: 'Hello how are you?' 'Hey there fellow camper! I am great! How are you?' 'I'm doing well and very excited about my camping trip.'
Utterance: 'Me as well. What item is your greatest priority for your trip?'
[A]:
No