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.

Example Input: Context: 
Utterance: 'Hello! I would like make a deal with you on firewood, water and food! Are you interested in any items ?'
Example Output: No

Example Input: 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?'
Example Output: No

Example Input: Context: 'I need the food and water.  You can have all the firewood.'
Utterance: 'hello how are you?  I need the food the most because I ran off and left mine sitting on my kitchen counter.  I think we can agree upon you having 2 water but I need 2 food'
Example Output:
Yes