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: 'It's been so cold these last few days, I'm worried that I didn't bring enough wood for the next few nights.'

A: Yes
****
Q: Context: 
Utterance: 'Hey, would you like to take more firewood in exchange I'll get more food? Just in case I get lost and would need to ration out my portions. '

A: Yes
****
Q: Context: 'Hello, I would like to take all of the firewood and two of the water packages. You can take all of the food and the other water package. ' 'I am not a fan of that deal'
Utterance: 'That's alright. Do you have anything you need in particular? '

A:
No
****