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.

Context: 'Sounds good I will give you the 2 packages of food.🙂' 'So nice of you !! Now can you summarize your needs?' 'I will need 3 packages of firewood. 1 package of food and 1 package of water. What are your needs?'
Utterance: 'Yes, you are absolutely right. Thank you very much !! I'll take 2 package of food and 2 package of water .'
No

Context: 'Hi there, good to connect with you. How are you today?' 'I am good, thank you. What are your preferences? I really need the extra food packages. We are doing a lot of hiking and mountain biking and there are no grocery stores for at least 50 miles.🙂' 'Oh wow that is quite a lot of hiking! I think we will be hanging out a lot overnight and so I am looking for more firewood if possible. My kids can't hike very far and want to do more with smores and marshmellows. '
Utterance: 'I can work with that. I am willing to give you all of the firewood. We are in a hot climate and won't need too much. Being in a hot climate and with a lot of exercise, I am hoping to take the three water packages. '
Yes

Context: 'OK. Are you need Extra food packages?' 'no, I am okay with food which is why I offered them all to you since all my firewood is ruined. I figured if i gave you 2 water and 3 food you might be able to spare the 3 firewood' 'No I cant give you all the firewood. I will take atleast one firewood. Also can I have all three water bottles. '
Utterance: 'the absolute most water I can spare is 2 and , my firewood is pretty much useless. I can give you 2 water and 1 food for 2 of your firewood that is my final offer'
No