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.

Input: Consider Input: Context: 'Hi there! How are you?' 'Great! I'm very excited to go camping, how about you?' 'I am! Now, I need a lot of firewood because we were planning on burning some earlier (to start cooking meals and such). I also need some extra food in case bugs come and eat some (like last trip, ugh). How about I take 2 firewood, 2 food, and you take 3 water, 1 firewood, and 1 food?'
Utterance: 'Would you be open to taking 1 less firewood, I would give you 1 food for it. The weather is supposed to be extra chilly and we did not bring warm enough sleeping bags so we need the extra firewood to avoid freezing to death!'

Output: Yes


Input: Consider Input: Context: 'Just to be clear, I get 3 firewoods, 1 water and 1 food. You get 0 firewood, 2 waters and 2 food packs?' 'Everything sounds good except you and your family take 2 of the food, i need to lose weight anyway.' 'Perfect! Thank you!'
Utterance: 'We have a deal, enjoy the camping trip with the family, the best memories'

Output: No


Input: Consider Input: Context: 'Alright... my baby is on formula and needs water for her bottles. My son snacks all day and really needs food. Otherwise, he will starve and won't thrive' 'Okay, maybe wwe can split the food and water somehow. I don't know how.🙂' 'Can i have 2 firewood, 2 food and 1 water'
Utterance: 'That can work. That seems like a good solution to the problem.🙂'


Output: No