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: 'Hello, I am very cold and need food and wood to remain warm. How about I get 3 firewood, 3 food and 1 water?'

A: Yes
****
Q: Context: 'What kind of items do you need?  I especially need water because I would like to do extra hiking and would need to hydrate.  ' 'I need all three, but need food the most' 'I would give you all of the additional food if you gave me all of the additional water. '
Utterance: 'That sounds like a deal'

A: No
****
Q: Context: 
Utterance: 'I would like to ask for 3 firewood, 1 water and 0 food. I will be in an area where no extra wood will be available and I need the wood to cook all the food that I will already have.'

A:
Yes
****