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!'

A: No
****
Q: Context: 'Hello, I am very cold and need food and wood to remain warm. How about I get 3 firewood, 3 food and 1 water?'
Utterance: 'That doesn't really work for me because then I would get only 2 waters and nothing else ☹️. What do you think is your highest priority?'

A: No
****
Q: Context: 'hi, i am doing well' 'cool, the family is looking forward to the camping trip this weekend' 'same, I will need 3 food as I need food to survive, in return, you can have all the water'
Utterance: 'My kids are really eager to make s'mores and tell stories by the campfire. They do need some food though. But i am willing to give you the 3 food for 3 firewood and 2 water if that works for you?'

A:
No
****