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: 'Oh, that does change things a lot. Diabetes is a hard disease to have to deal with. So you want more firewood than water? And less food than water?' 'Well, I don't know.  I think I would like more water than firewood, but yes less food than water.  I'm a pretty easy going person though! 🙂' 'Ok, let me know what you think and we will go from there. I do prefer more food and firewood than water though.'
Utterance: 'Okay, it sounds like we are pretty agreeable here.  I will wait for you to make an offer if you would like to.'
Example Output: No

Example Input: Context: 'Hi, what is your highest priority item?'
Utterance: 'I would love to have extra food for my trip, bringing the family! how about you?'
Example Output: Yes

Example Input: Context: 'Nice, so are we!' 'That is awesome! The one bad thing about my campsite is there's no stream or lake nearby. I'm going to need a lot of it so I can shower/wash up' 'Well I was hoping to grab some extra water as well, Its suppose to be record highs. '
Utterance: 'I'm sure we can figure something out. I'm going to need a good amount of firewood too to cook my food. The good news is I won't need any food 🙂'
Example Output:
Yes