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: 'The basics of man -  food and water' 'Ah, okay, I could use some of that too! Which one do you need most?' 'water. How about you?'
Utterance: 'I could use water, too, but I'd be willing to give some up if you give me more items overall'

Ex Output:
Yes


Ex Input:
Context: 'I just want to make sure that I don't run out. I will have my kids with me and need to make sure they don't get too cold 🙂' 'Understandable I am an avid outdoorsmen; Starting firewood is hard and can also be dangerous; how about you give me the two I will only use one you get one and I will be able to secure more within a few hours. ' 'Are you sure that you would be able to get more firewood on your own?'
Utterance: 'Yes and as a return ill give you 70 percent of what I get-- So with me managing the firewood for you, you will get more time with the kids.'

Ex Output:
No


Ex Input:
Context: 'In that case, I would be fine trading the extra food for a water. so you would get 2 waters and 2 foods ' 'Hmm, that works for me. So basically, you get 1 food, 1 water, and 2 firewood? I get 2, 2, and 0. If that's right, I agree.' 'Yea, so that about right, but i get 3 firewoods'
Utterance: 'Oh, yeah, sorry, mistyped that. Okay, let's do it then. Was good talking.'

Ex Output:

No