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.

Input: Consider 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 '

Output: Yes


Input: Consider Input: Context: 'Hi, how is your trip going? hopefully better than mine' 'My trip is going pretty so so too  im sorry to hear that about yours!! sounds like we both are gonna need some extra stuff? I was wondering if we could start with the water? any chance i could have it all and you can have all of something else? thoughts? im open to discussion'
Utterance: 'I am actually very much in need of water. I fell while I was hiking during this trip. I have a really bad wound I need to clean on my leg. '

Output: Yes


Input: Consider Input: Context: 'Hello' 'HI how are you today?' 'Good. I am diabetic so would like to take 3 of the food'
Utterance: 'I would do that but our meat spoiled because the ice box was not properly closed. How about you get 2 of the meat, and I get 3 of the water?'


Output: Yes