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: 
Utterance: 'Hey, would you like to take more firewood in exchange I'll get more food? Just in case I get lost and would need to ration out my portions. '

A: Yes
****
Q: Context: 
Utterance: 'Hi:  I  have invited friends from a nearby campsite for dinner and i heard it is going to be really cold tonight. I would prefer to have some extra fire wood for sure. lly cold tonight.'

A: Yes
****
Q: Context: 'Ok great, are you going to be ok with getting your own water and firewood during the trip?' 'I think that I will be able to, so I'd like to offer you those extras.🙂' 'Thank you, it would have been difficult for me to get more firewood and I appreciate the additional water. So I get 3 firewood, 2 water and 0 food.'
Utterance: 'Yes, I think that deal will be the most helpful to both of us. I appreciate the food, which is important to me.'

A:
No
****