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: 'for me. 2 pack of water 2 pack of fire wood and 2 pack of food. ' 'I gotta have one extra of the food or wood at least if you want two water' 'i already reduce my package in water. now what can i do? in my group my wife is cansive and one kid and a old man he is sicked person. so i need this package friend. please friend'
Utterance: 'well. I may be willing to give you two water but i need to have two firewood to boil up some of this lake water to try to drink'

A: Yes
****
Q: Context: 'I would really like some extra firewood to keep the chill off on those cold nights.🙂' 'Me too. It has been rather cold lately! But I am also really interested in water.' 'I don't need the water as much. How about I get 2 firewood and you get 2 water?'
Utterance: 'I would prefer all the water. You can have all of the firewood.'

A: No
****
Q: Context: 'Yes I can give you the three food but I need 2 water. I can become very thirsty. ' 'Yes that is totally fine with me. What about firewood' 'I can give you 1 of the firewood. I would like to stay warm at night so I want 2. 😮'
Utterance: 'Hmm that's going to be hard for me because I also get cold. what other reasons do you have?'

A:
Yes
****