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: 'Hi! I'm super excited to camping with my family! We have had to cancel all our original travel plans due to Covid and we're really looking forward to this trip. Especially my son! He's been so restless at home. Are you going camping too?'
Utterance: 'Yes, I am! I can't wait. I'm going on a 3 week trip to this gorgeous lake.'

Ex Output:
No


Ex Input:
Context: 'Hello! Thats terrible that the airline lost your bags! I'm planning on have a large group of friends with me so we need lots of snacks with us. We are scared of fires so we don't want to make campfires.' 'Well maybe we can work something out between us.  Our food and water was in the bags they loss so I really need those.  Do you think you could make do with 1 food and some water?' 'I really need 2 foods. I can do with 1 water or if you are in a giving mood then maybe I can have 2 waters? 🙂'
Utterance: 'Looks like we both really need the food.  If you get 2 food I would need 1 food, 2 water and 3 firewood. '

Ex Output:
Yes


Ex Input:
Context: 'I need food and firewood' 'I need water and then firewood' 'You can have all the water if I can have all the extra food'
Utterance: 'OK, but first tell me why you need extra food'

Ex Output:

No