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 have some spare cans but i am not too worried about it. its a low prioirty for me ' 'How about your water? Won't you be going through a lot of water where you are going?' 'i am good on that, i dont think i will be but its second on my to do list'
Utterance: 'Are you willing to take 1 firewood and 2 waters? I also don't need the food.'
No

Context: 'I agree, can't wait to unplug. As far as supplies go, I think its going to be hot and sunny where I'm going, wouldn't mind a bunch of extra water.' 'Water is extremely important to me too. I can give you 2 waters if you give me all 3 firewoods. ' 'Hmm, ok, thats pretty fair. I do have a larger group going as well, so would it be okay if I got 2 extra food then?'
Utterance: 'I think that will work. '
No

Context: 'okay. 3 pack of water 2 pack of water and 1 pack of fire wood for mine. deal??' 'wait man i need 1 fire wood i give 1 water to you i must need 1 fire wood' 'Are you mad. what can i do with out water..'
Utterance: 'You have some this is extra'
No