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: 'Hi how are you? I have a few medical issue and do need to stay warm so fire wood is important to me. What is important to you? '

A: Yes
****
Q: Context: 'You can all the food if you need it.🙂' 'Thanks!🙂 Do you need any water packages?' 'Yes. Since the days are on the warmer side, I'm a afraid of getting dehydrated. I would love to have all of it...'
Utterance: 'Ah, that doesn't work for me. I would need to have at least one water because one of mine has a leak (and I have an extra person joining me).'

A: Yes
****
Q: Context: '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.' 'Hi I am also going camping. Unfortunately I need as much firewood and water as possible too. I need to be able to cook our food and stay warm all night '
Utterance: 'Can I ask how many people are camping with you? Are you planning on hiking the mountain?'

A:
No
****