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: 'Great, this is going to be a fun trip. So I get 2 water, 2 food and you get 1 water, 1 food and 3 firewood?' 'Yes, I cant wait to set off. It sounds like you have it all correct. I hope we both have a great trip. ' 'I hope it doesn't get cold out since I won't have any firewood. You need it more than I do though, so you should have it all.'
Utterance: 'Thank you. I hope I don't run out of water. I get dehydrated easily but I want us both to be comfortable. '

Ex Output:
Yes


Ex Input:
Context: 'Thanks. Yea they do  love their snacks LOL. Yea I just need 1 extra food. Snice I wasn't planning on her friend coming. ' 'Okay, then the deal you mentioned earlier sounds good to me. You're okay with me getting 3 water 2 food and you getting 3 firewood and 1 food?' '🙂 Yep sounds like it will help us out the best snice you need water and food for your hike and I need firewood and just 1 food here at the camp.'
Utterance: 'Okay, then that sounds like a good deal for us both! It was a pleasure doing business with you, thanks!🙂'

Ex Output:
No


Ex Input:
Context: 'Hello, are there any of the three items that you want to be sure you have enough of? 🙂'
Utterance: 'I want to be sure that I have enough firewood.  I want to relax, sit around the campfire, and roast hot dogs and marshmallows.  What about you?'

Ex Output:

Yes