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: 'Hello!  I've been super thirsty and as a result I was wondering if I could get all 3 packages of water?'
Utterance: 'I like to hike and will need additional water. Can I take one package and you can have the other two? '
Example Output: Yes

Example Input: Context: 'Hello fellow camper! I am interested to know your preference in items?' 'Hello! Yes I'm excited for the trip. 🙂 My most important is food. How about you?' 'I am excited too. I really need food too. What other item is priority for you?'
Utterance: 'I also need water because we plan to do a lot of hiking. What about you?'
Example Output: Yes

Example Input: Context: 'Well it's important for both of us to get that wood ! ' 'In order to get all food, can you give me additional firewood?' 'How about I do: 2 firewood, 2 food and 1 water?'
Utterance: 'Well, what would it take for you to give up extra wood? '
Example Output:
No

