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.

Context: 'Okay. I'm willing to give in on the firewood, but I really can't give in on the water or the food. As a diabetic I have to put my health first. ' 'I can give out the food in exchange for the firewood' 'Okay. I need all of the water, if you're getting the firewood. '
Utterance: 'I can't give out all the water. I need to be hydrated as well. '
Yes

Context: 'Me too!! Though it's over 100 degrees these days. 😡' 'Well hopefully it will be cooler up in the mountains. What supplies are you in need of?' 'I am a big eater. I tend to eat a lot throughout the day. You? 🙂'
Utterance: 'Ha I get that! I'll need that too, but mostly water because my family wants to do a lot of hikes.'
Yes

Context: 'Good thanks! So I'm hoping I can get all of the Food, but am willing to negotiate on the other items. ' 'Ohh food?.Thats a very essential property over here.I mean very important.Do you really need it that bad?' 'It's my top priority, but if you need some, I'd need more water and firewood'
Utterance: 'It aslo my top priority but i would not if u give me 3 packages of water and  2 firewood in exchange for all food.Agree?'

No