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: 'Hi! I was hoping to get 2 packages of firewood, 2 packages of water and 1 package of food and you can have the rest.' 'Hello. Is there a reason you prefer more water and firewood to food?'
Utterance: 'I get cold very easily and also get thirsty a lot. What are your preferences?'
Yes

Context: 'hello, me too. what is most valued to you?' 'I just want to make sure that I get a lot of firewood. It's going to be freezing cold on my trip, and I need to make sure I can stay warm. What's most valued to you?' 'unfortunately  i need a lot of wood too. and food. '
Utterance: 'Okay. And what about water? I'd like at least 1 water. I'm going to do a lot of hiking and need to stay hydrated.'
Yes

Context: 'So could I get 2 food, if you get 1 food?' 'How many persons are you feeding? I am feeding 2 adults and 2 children.' '2 adults and 3 children, so if I get 2 food and 1 water, you could get 1 food and 2 water? '
Utterance: 'I believe we can work with 1 food and 2 waters.🙂'

No