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: 'Firewood, how about you?' 'Oh, firewood as well! It's not a camping trip if you run out of firewood in just a few nights! I would hate to be cold ' 'I was thinking S’mores!  I will start off....2 firewood, 2 water, 1 food'
Utterance: 'I was thinking smores too! Well I can settle for 1 firewood, but I think I would need more food to keep busy. How about (for me to recieve): 1 firewood, 3 food, 1 water?'

Ex Output:
Yes


Ex Input:
Context: 'Hi there, good to connect with you. How are you today?' 'I am good, thank you.  What are your preferences? I really need the extra food packages.  We are doing a lot of hiking and mountain biking and there are no grocery stores for at least 50 miles.🙂' 'Oh wow that is quite a lot of hiking! I think we will be hanging out a lot overnight and so I am looking for more firewood if possible. My kids can't hike very far and want to do more with smores and marshmellows. '
Utterance: 'I can work with that.  I am willing to give you all of the firewood.  We are in a hot climate and won't need too much.  Being in a hot climate and with a lot of exercise, I am hoping to take the three water packages. '

Ex Output:
Yes


Ex Input:
Context: 'Oh wow that is quite a lot of hiking! I think we will be hanging out a lot overnight and so I am looking for more firewood if possible. My kids can't hike very far and want to do more with smores and marshmellows. ' 'I can work with that.  I am willing to give you all of the firewood.  We are in a hot climate and won't need too much.  Being in a hot climate and with a lot of exercise, I am hoping to take the three water packages. ' 'Thank you for that. I'm happy to give you the food packages as well as we shouldn't need extras. Being around the fire, we are going to be hot as well and dehydrated. I say let's try and split the waters. '
Utterance: 'We are going to be in an area where there is little potable water.  I don't have a water filter either.  The extra water will be very important for our group.  '

Ex Output:

Yes