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: 'Wow. I'm alone here. I could use an extra food and water. ' 'How many would you like? I just want to make sure we have enough good and water because there are so many of us' 'I understand. I would like one food and one water. How much wood do you want for that?'
Utterance: 'I think we could get by with two pieces of wood and I would be glad to give you the other one'
No

Context: 'Can you spare some water? I need to take medication and I have run out.' 'Hi there, that sounds important. Yes, we can make sure you get some water. How does 1 package sound?'
Utterance: 'I'd rather have 2, can give you all of my food for all of your water?'
No

Context: 'hi, i am doing well' 'cool, the family is looking forward to the camping trip this weekend' 'same, I will need 3 food as I need food to survive, in return, you can have all the water'
Utterance: 'My kids are really eager to make s'mores and tell stories by the campfire. They do need some food though. But i am willing to give you the 3 food for 3 firewood and 2 water if that works for you?'
No