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! I would like make a deal with you on firewood, water and food! Are you interested in any items ?' 'Yes, I'd definitely be interested. How are you doing?' 'Not bad, not bad. How are you. What's on your mind for camping? '
Utterance: 'I'm doing well. We're desperately needing wood. We didn't realize how cold it would be as it is our first time here. There is none around our area so we are really concerned about staying warm especially at night. We also forgot a bag of food, so that's another need for us.'

A: Yes
****
Q: Context: 'We can do the 3 for 3 trade.  That works perfectly!  Its' going to be cold at night where I'm going.  What's it like where you're heading?' 'It's going to be pretty warm where I'm going, but it's also variable. How do you feel about you get 2 wood and I get 1?' 'That's mighty kind of you.  We have a deal!  I'll take the 2 wood and you get 1.  Thank you.  You'll also get the 3 packages of food and I'll get the 3 waters.  Deal ?'
Utterance: 'Deal!'

A: No
****
Q: Context: 'Hello. 🙂 What item did you need a little extra of?' 'Thank you for asking, I would really like some extra fire wood as I usually get cold and scared at night so I can keep a fire going.' 'I'd be willing to give you all my firewood if you could give me all the water.'
Utterance: 'I do need at least one extra water bottle in case the fire goes out of control, but I am willing to forgo any food as I can forage for food.'

A:
Yes
****
