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: 'Well my camp places a premium on water.  How would you feel about for me: 2 water, 1 food, 1 firewood?' 'I think we're on the right track.  I am bring my 2 kids with me and they eat everything in sight.' 'Would they be okay with 2 food?  Otherwise can give you an extra and I can take either an additional water or firewood 🙂'
Utterance: 'I have a great offer.  How about I take 2 food, 2 firewood and 1 water and you will get the extra water your camp needs!!'
No

Context: 'Hi there - how are you today?' 'I'm doing well.  How are you today?' 'Pretty good. Just hanging out with our group. Looking forward to this upcoming camping trip. It's a college reunion weekend. '
Utterance: 'Oh.  That sounds fun.  I'm getting ready to go camping with my family next weekend as well.  It will be the first time that my kids have gone camping with me.'
No

Context: 'Hmm.  And why do you need so much food?' 'I need an extra supply of food, as I exercise a lot! 🙂' 'Hmmm.  And the firewood?'
Utterance: 'I get cold easily. I need the firewood to get warm. I might catch a cold.🙂'

Yes