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'm fine, let's talk about how we can come to a fair deal.' 'Sure, my number one item if food if you can spare any.' 'It'd be nice if we can both get an even split right?'
Utterance: 'Well some needs are higher than others.  I need more food but I can give up some firewood or water.'
Example Output: No

Example Input: Context: 'That would work for me if I get all 3 water still' 'How about you get 2 of the waters an i would take 1 of them? I need some water to stay hydrated ' 'If you get two foods then I need more items overall'
Utterance: 'you will have more because you will be getting 2 firewood and i will get ! and you will get 2 waters and i get 1 and i will get 2 foods and you get one'
Example Output: No

Example Input: Context: 
Utterance: 'Hello, how are you? 🙂'
Example Output:
No