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: 'I really need water because I take medication that requires drinking a lot of water. The firewood I dont need to much off and I need very little food as I am dieting. lol 🙂' 'I totally understand that. And it's pretty important, lol ' 'It sure is..So how much food do you need for the trip? Do you need firewood to cook the food? Thank you for understanding my issues. 🙂'
Utterance: 'I definitely need the food the most. I'm definitely not a "hunter", so if I were to run out, I'd be in pretty sad shape. I do need the firewood for both cooking, and keeping warm. It gets cold at night where we're going. How about youself?'

Ex Output:
Yes


Ex Input:
Context: 'I don't think you that fat, your lipids will help you stay warm and full out there, haha' 'Im not as good at you at foraginf for food and water i probably dont have the experience as you do being in the outdoors and living off the land.🙂' 'With the extra firewood, you can hunt for fish and other animals outside to thrive'
Utterance: 'i cant hunt if i dont have the proper nutritional value to make sure i can make it that long.  how about i get 2 firewood 2 water and 1 food you get the rest'

Ex Output:
Yes


Ex Input:
Context: 'Okay then. I can give up one for you. Will that be okay?' 'no i think i need 2 waters' 'That will be very difficult for me. I have a condition that requires water all the time.'
Utterance: 'Same thing here. Also i only need 1 food so can i get 2 waters'

Ex Output:

Yes