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 think they went to Chicago.  I really needing replace our lost water and sleeping bags.  I see there are some extra supplies to share.  I could really use the water and firwood.  🙂' 'oh yeah, you definitely do. we have all of our stuff and mostly wanted to hike and have picnics during our camping trip ' 'Great. If you mainly doing picnics do you want 3 Food?   I could use the the supplies.  🙂'
Utterance: 'Sure, I'll take 3 food and 1 water would be nice. you can have 2 waters and all of the firewood '

Ex Output:
Yes


Ex Input:
Context: 'It's in Upstate New York, near a gorgeous lake. I like it because it's secluded and very peaceful. ' 'Sounds good. I'll be doing quite of a bit of cooking over an open fire during my trip.' 'Wow. That sounds great! There's nothing like campfire cooking on a chilly night! I'll doing a lot of that too, but I also want to enjoy swimming as much as I can🙂 '
Utterance: 'understood, I can give you 1 firewood, 2 food, and 2 water to make your trip better.'

Ex Output:
No


Ex Input:
Context: 'I need water and then firewood' 'You can have all the water if I can have all the extra food' 'OK, but first tell me why you need extra food'
Utterance: 'I have 10 people in my group'

Ex Output:

Yes