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: 'im sorry i mistyped. okay yes thats a deal. so last we have to talk about the wood. what do you think' 'Oh yes, sorry I am so caught up with my wound I completely forgot about that. I can spare 1 firewood so you would get 2, do you think you could spare another water in exchange for the wood?' 'i cant unfortunately i really need the two water im sorry. '
Utterance: 'im so sorrry unfortunately i am in dire need of two wood we are in a very cold climate'
Example Output: Yes

Example Input: Context: 'Hi how are you today? ' 'am fine and you?' 'I am good. Do you have any preferences on which items you would like most?'
Utterance: 'yes i really need a high amount of water and food.i have firewood in excess'
Example Output: Yes

Example Input: Context: 'I will give you water. Firewood also need for me because of my health condition i want some warm.' 'Will one extra firewood be enough to keep you warm?' 'I'm not sure why you entered a deal we did not agree on.  I can leave you the three food and one firewood.'
Utterance: 'you send me the deal'
Example Output:
No