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: 
Utterance: 'Hi:  I  have invited friends from a nearby campsite for dinner and i heard it is going to be really cold tonight. I would prefer to have some extra fire wood for sure. lly cold tonight.'

Output: Yes


Input: Consider Input: Context: 'hi how are you' 'I am well, thank you.  Yourself?'
Utterance: 'good here, I will need 3 water as I need it to survive'

Output: Yes


Input: Consider Input: Context: 'I find it a good deal, however before making a deal, I like to talk to people, get to know them better. I plan to go to camp with my family: my wife, my four children and myself. Are you going with your family?' 'Yes, I am going with my wife and two teenage sons. We are planning on doing a lot of fishing!' 'What do you think if in the camp we get together and have a meeting between your family and mine? We can have a small party to get to know each other better.'
Utterance: 'Sounds great!'


Output: No