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: 'im sorry i mistyped. okay yes thats a deal. so last we have to talk about the wood. what do you think' 'Oh yes, sorry I am so caught up with my wound I completely forgot about that. I can spare 1 firewood so you would get 2, do you think you could spare another water in exchange for the wood?' 'i cant unfortunately i really need the two water im sorry. '
Utterance: 'im so sorrry unfortunately i am in dire need of two wood we are in a very cold climate'

A: Yes
****
Q: Context: 'Great thank you. I am looking for primarily some firewood and food for my camping trip soon. ' 'I'm going camping too and also need food and wood, mostly food though' 'Okay I understand that! Is there a particular reason that you do not need much water?'
Utterance: 'I figure I could always get some at the stream 🙂'

A: No
****
Q: Context: 'Hi there, that sounds important. Yes, we can make sure you get some water. How does 1 package sound?' 'I'd rather have 2, can give you all of my food for all of your water?' 'I actually got really dehydrated on my last camping trip, so don't want to be completely without water. How about 2 for you, 1 for me?'
Utterance: 'That is good, is it possible that I could get some firewood as well? I may be suffering from hypothermia.'

A:
Yes
****