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.

Ex Input:
Context: 'Okay I understand that! Is there a particular reason that you do not need much water?' 'I figure I could always get some at the stream 🙂' 'Yes, I agree, but are you aware of the water quality at your campsite? '
Utterance: 'Not completely aware but I do have a filter that I brought from home. What are your needs?'

Ex Output:
No


Ex Input:
Context: 
Utterance: 'HI. I'd love to get 2 additional packs of firewood. The weather forecast was for much warmer weather here and I just didn't bring enough with me. I also left my additional sweatshirt at home. I'd be happy to give you one additional water and two of food.  🙂🙂'

Ex Output:
Yes


Ex Input:
Context: 'ME as well! we are a group of big eaters, and are looking to take lots of food.' 'That is fair as there is no showers or sinks at my campsite so I am looking to take water :) ' 'We will likely also need to take water too. Need to be able to wash up.'
Utterance: 'That is fair, I also will need a good bit of firewood to keep warm as the campsite is in a colder area.'

Ex Output:

Yes