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: 'I would give you all of the additional food if you gave me all of the additional water. ' 'That sounds like a deal' 'Shall we divide the firewood two to one? '
Utterance: 'sure as long as I am getting two wood.   It gets very cold at night where I go camping'
Example Output: Yes

Example Input: Context: 'I would propose that I get 1 water, 1 food and 3 firewood and you would get 2 water and 2 food' 'I don't mind the division but I would like a pack of firewood added because my family of 7 consume this item as well during the day & night' 'you would have to give more items up to get firewood. if you get more water, which is our highest item, i need more of other items'
Utterance: 'How about 1 water, 2 food and 2 firewood?'
Example Output: No

Example Input: Context: 'hello ,how are you' 'hi, i'm doing good! i really need food quite a bit because my kids are with me on this camping trip' 'okk i will give please explain how many pack you need '
Utterance: 'that's so kind of you! could I please have 3? which item do you really need, I can give you 3 of it'
Example Output:
No