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.

Input: Consider Input: Context: 'I can't give out all the water. I need to be hydrated as well. ' 'You already have all the basics, though, so you won't lack sufficient water to be hydrated. I have a serious medical condition that requires that I have access to additional water. ' 'The maximum bundle I can give is all packages of food + 1 package of water'
Utterance: 'Sorry, that won't work for me. I've already said that I have a medical condition that requires additional water. You do not need that much water just to be hydrated -- you already have basic water. I can give you all of the firewood, but I need all of the water. '

Output: Yes


Input: Consider Input: Context: 'I need the water to drink - I don't trust the water I might find at the campsite.' 'Did you bring any water to start?' 'Yes! Did you bring any food to start?'
Utterance: 'I did, but my friend only feels comfortable with extra around, God forbid, if something happens this could save his life. So I'm thinking, I take all three food packages, two firewood packages and leave all three water and one firewood for you. '

Output: No


Input: Consider Input: Context: 'yes i guess you too. i will need more supplies like 3 foods, 2 firewood and1 water' 'I have not really camped before so I am looking for as many supplies as possible.  What about I get 3 food, 3 firewood, and 1 water. ' 'funnny you but no. so what else will i be left with if i give you those. okay let say i get 2 food, 2 firewood and 1 water.'
Utterance: 'I am really bad at cooking so will probably need an extra good just because I'll ruin one of the 3.  Plus Im bringing 2 dogs they can eat the bad food I make 😮  I dont plan on hiking much so how bought I keep all 3 foods, and you keep all 3 waters and we can split the firewood.  2 for me, 1 for you. Great deal!'


Output: Yes