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: 'Hello! What camping supplies are you looking for the most?' 'Hello! I would like more packages of food the most. What are you looking for?'
Utterance: 'I would need water the most as I forgot to bring enough. I can give you all my food for all of you water, if you'd like?'

A: Yes
****
Q: Context: 'I wish we could split packages in two!  How about if I give you another food and I keep two firewood?' 'that is ok, the original you stated will work, 2 food, 2 water and 1 firewood for you, and 2 firewood, 1 food and 1 water for me , i need to lose weight anyways ' 'Well now that you mention it, I could lose a few pounds 😮'
Utterance: 'haha but you enjoy hiking, i do not. '

A: No
****
Q: Context: 'Hey, I was thinking that I could take all of the food items, and 2 of the firewood items. My friend has low blood sugar and they need the food in case they crash, and the warmth of the fire to maintain at evening.' 'Water is my highest priority, what is yours? Is it food?' 'Yes, food is my highest. It's necessary for my friend to keep extra around just in case he crashes. Why is water your highest priority?'
Utterance: 'I need the water to drink - I don't trust the water I might find at the campsite.'

A:
Yes
****
