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: '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: 'Hi there, I am doing well, I can get you an extra firewood as long as I can get extra Water and Food to thrive during camping' 'I would be ok with that but i will need some water and food as Im a little out of shape' 'I can get you one package of water and food, will that work?'
Utterance: 'how am i supposed to stay alive with one package of food and water im fat lol'

Ex Output:
Yes


Ex Input:
Context: 'I don't mind taking 2 of the water as I need it for a medical condition and 2 firewood however I would like to get 1 of the food.' 'You need water the most?' 'I am constantly thirsty and having water on hand is needed. Why is gathering food an issue for you?'
Utterance: 'I am not able to get around as much to gather the food. It could require a lot of walking and I might find nothing. What if I took 2 food, 1 water, and 2 firewood, would that be good for you?'

Ex Output:

Yes