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: 'Hi there! How are you?' 'Hello good morning I'm well thank you.' 'Let's talk about what we need. First, I don't eat meat, so I really feel like I'd need a little extra food, as I couldn't hunt or forage for food at all. I feel like I could survive without a ton of water, but would need water, as I hike a lot and cant trust any sources'
Utterance: 'I've also planned my trip to include a lot of hiking and so I have a high priority for extra water, as like you've said you need to stay hydrated on your hike and you can't trust any source. How can we divide up the water as that seems to be the number one priority for us both.'
Yes

Context: 'hello there my fellow camping friend'
Utterance: 'Hi! I'm most interested in acquiring firewood, since I don't want my fire to burn out on the trip. What are you looking for?'
Yes

Context: 'hello, so what is your most important thing that you want? ' 'my priority is firewood. What's yours?' 'me and my gals thing that firewood is important also but we actually want water'
Utterance: 'We can figure something out. Would you rather have 3 water and 0 firewood or 2 water and 1 firewood?'

No