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: 'I would propose that I get 1 water, 1 food and 3 firewood and you would get 2 water and 2 food' 'I don't mind the division but I would like a pack of firewood added because my family of 7 consume this item as well during the day & night' 'you would have to give more items up to get firewood. if you get more water, which is our highest item, i need more of other items'
Utterance: 'How about 1 water, 2 food and 2 firewood?'
No

Context: 'no sorry i dont think so. i need some extra water because i only need a little food' 'Okay then. I can give up one for you. Will that be okay?' 'no i think i need 2 waters'
Utterance: 'That will be very difficult for me. I have a condition that requires water all the time.'
Yes

Context: 'I would take 3 packages of food and just 1 package of water. Is it okay for you?' 'No, I don't take this. Because food is important for my child and me.' 'Try to understand our situation. We had food a week back. We were drinking only water for the whole week. We are dying of hunger. Kindly understand our situation.'
Utterance: 'Even me too facing the same, but i am ready to share one food with you. You can offer me more water to safe myself without dying. Both will be happy'

Yes