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.

[EX Q]: Context: 'It will be nice to get out and explore the great outdoors, even if it is super hot!' 'I agree. What supplies could you use more of?' 'Water for sure, need to stay extra hydrated.  How about you?'
Utterance: 'Haha yup I had a feeling about that one. ;-) Yeah my wife has a bunch of crazy hikes planned so water is a must here too. What else?'
[EX A]: Yes

[EX Q]: Context: 'Hi I would like to trade you food for some water 🙂' 'How many food would you like to trade for water?'
Utterance: 'How about 2 Water for 3 food?'
[EX A]: No

[EX Q]: Context: 'Hello, I'm in need of some extra food for my trip.  I just checked and some of my food is past the expiration date.' 'Hi friend! How are you. Food is a non negotiable for me. We currently don't have enough for our trip.' 'Everything is negotiable 🙂 but if you absolutely can't budge on the food then I will need some extra firewood and water to make up for it.'
Utterance: 'We cannot budge at all on food. But are more then happy to give up all the extra fire wood for all the food. '
[EX A]:
No