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: 'That is a promising bargain but I want at least 2 firewood, it makes for a fun time for my group.' 'Interesting , because my group feels the same way though. How does your group feel about water though?' 'Water is not that important for us but the firewood is a deal breaker for us ☹️'
Utterance: 'I see.... Well we really would like the firewood too though. Could you reconsider it makes a big difference for us.'
Example Output: Yes

Example Input: Context: 'How are you today? Did you have any preferences on the supplies we will be trading?'
Utterance: 'I am good. How about yourself? I think I would like some firewood to start off with. We like to have bigger fires. What about you?'
Example Output: Yes

Example Input: Context: 'Forest, for sure. Deserts have scorpions and tarantulas and I'm scared of those.' 'Amen! Me too! 🙂 I too was thinking of going to the forest. Is your forest going to be wet or pretty dry?' 'It'll be pretty dry. I don't want to catch a cold. '
Utterance: 'I wanted to a rainforest near where I live. I love listening to the rain. Did you think that you were going to need all of the firewood since you can get dry wood from the trees?'
Example Output:
No