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 there, I'm in a lot of need for some firewood! I'd not be against taking most of it if that's alright?'
Example Output: Yes

Example Input: Context: 'I need more firewood to keep my food going.' 'I get it, in that case I'' take additional packages of food.' 'I don't think so, because I need additional packages of food in case there is an emergency.'
Utterance: 'I was under the impression you don't have the need for additional firewood as you mentioned you need additional of food and water. Let me know how many packages of item you need.'
Example Output: No

Example Input: Context: 'Me too. How about you can have 2 water and 1 food if you give me 2 firewood?' 'Ok.  So I'll get 2 water and you'll get 1 water?' 'Yes. And then I'll get 2 food and you'll get 1 food. And then I'll get 2 firewood and you'll get 1 firewood. How's that?'
Utterance: 'That sounds good to me.  It looks like it will be a good weekend for both of us.'
Example Output:
No