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: 'awesome! I love the rockies. So let's try and divy up our extra supplies then. Personally, I feel that I'd need the most extra food, as I'm a rather large guy and plan to go hiking a lot during this time. Firewood would be nice, so I could have a big bonfire. What are your prefernces? ' 'i need food the most since there will be my kids and I. I can give up my firewood for food' 'Okay, so how about I get 1 food, and 3 firewood and 1 water, and you get 2 food, 0 firewood, and 2 water'
Utterance: 'sounds great'

Ex Output:
No


Ex Input:
Context: 'Hello my friend! Are you ready to go camping?' 'Getting there, just need some more supplies to be safe.' 'Got you! I really need firewood to make smores and I don't think we have enough to last the whole night!'
Utterance: 'I was hoping to pick up a lot of wood. It has rained around here and the wood is soggy in the forest.'

Ex Output:
Yes


Ex Input:
Context: 'Hello, I was wondering if you might want to split up the extra supplies with me. I was hoping for some food as I would have trouble gathering it up. ' 'Hello! I don't mind giving you more of the food as long as I could have more of the water and firewood. 🙂'
Utterance: 'Well, I do need some of each, what about I take 3 food and 1 each of the other two?'

Ex Output:

No