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.

Example Input: Context: 'Well it's important for both of us to get that wood ! ' 'In order to get all food, can you give me additional firewood?' 'How about I do: 2 firewood, 2 food and 1 water?'
Utterance: 'Well, what would it take for you to give up extra wood? '
Example Output: No

Example 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.'
Example Output: No

Example Input: Context: 'Thank you. 🙂 Would 1 food and 3 firewood work for you?' 'No problem🙂, i would be fine with 1 water, 1 food,and 3 firewood.' 'That works for me. Glad we could hammer out a deal. 🙂 What are you using all the firewood for?'
Utterance: 'so just to be clear that 1 water 1 food and 2 firewoods, and probably have a bon fire.'
Example Output:
Yes

