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.

Ex Input:
Context: 'Hi there! I can't wait to go camping! How about you?' 'I am sooooo excited too! I can't wait to sit by the fire! 🙂'
Utterance: 'Me too!!!! That is what I am most excited about. I was actually hoping you might have some firewood to spare?'

Ex Output:
Yes


Ex Input:
Context: 'No it's not.  Since my fever is very high and my chills are very bad I'd appreciate you letting me have 2 firewoods and in exchange you could have all the extra food.' 'That is an interesting proposition.  What about the water?' 'I think if you let me have 2 waters I might survive this scourge!'
Utterance: 'I think that your reasons are very compelling.  I would also like to survive.'

Ex Output:
Yes


Ex Input:
Context: 'That doesn't work for me. I will also need extra water because I drink a lot. How about we start by saying you get the firewood, and I'll take the food?' 'OK, but how do we split up the water? Because it sounds like we both need some. What if you take all the food and I take all the firewood and then I get two waters and you get one extra?' 'I would prefer to have 2 waters since I agreed to give you all the firewood.'
Utterance: 'But I agreed to give you all the food. Now that you want two waters, I think I should have some food because I left a bag of my food at home. You get two waters and I get one of the food. Then you get the majority of both the water and food.'

Ex Output:

Yes


