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: 'Got you! I really need firewood to make smores and I don't think we have enough to last the whole night!' 'I was hoping to pick up a lot of wood. It has rained around here and the wood is soggy in the forest.' 'Which item do you prefer the most?'
Utterance: 'I know how to filter water so you can have all of the water. I would like as much firewood as possible.'

Output: Yes


Input: Consider Input: Context: 
Utterance: 'Ok, so I like water a lot.'

Output: Yes


Input: Consider Input: Context: 'Well, I could see fit to give you the extra firewood (If I can hear a few of your songs!) if you don't mind letting me take the water.' 'Hahaha, once you hear my singing you might hope the opposite.  I can do that with the firewood and water, but I really would prefer two of the remaining foods. ' 'I could also use the extra food, so can we resolve it amicably?  Coin flip maybe?'
Utterance: 'That's a good idea.  I'll trust you to do the coin flip.  '


Output: No