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: 'I really need the firewood, It gets very very cold at night where I go camping.' 'I really needed firewood also. I have brought my whole family camping which includes my 2 and 3 year old. They really need to stay warm' 'I am just going to walk away, I can't have my family freeze'
Utterance: 'I do not want my family to freeze either but walking away doesn't benefit either of us. How about I take the water and 2 firewoods, you have the rest'

Ex Output:
Yes

Ex Input:
Context: 'Perfect! I'm a northerner, so the firewood is all yours! I'll need lot's of water to keep hydrated after the hike, and I'll probably be pretty hungry too.' 'My spouse calls me a water buffalo so I'm pretty water dependent if you couldn't tell. ' 'That's good. Best way to stay healthy is with water. How about you take 1 water and all the firewood?'
Utterance: 'I need at least one ration of food. Would it be ok with me: 3 firewood and 1 each of food and water. If you are ok with that, I am too.'

Ex Output:
No

Ex Input:
Context: 'I would be willing to take 2 firewood, 3 food, and 1 water if that would work for you. ' 'Hmm I think I should take 2 food, 1 firewood, and 3 water. What do you think?' 'Is your first priority the water? I'm definitely willing to split up by what is most important to us both.'
Utterance: 'Food is actually my first priority but since it seems to be first priority for us both I thought we could split that. Water doesn't seem to be a priority for you so thought I could take that'

Ex Output:
Yes