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 no-need strategy, otherwise output No. no-need is a cooperative negotiation strategy. It is used when a participant points out that they do not need an item based on personal context such as suggesting that they have ample water to spare. no-need can directly benefit the opponent since it implies that the item is up for grabs.

Ex Input:
Context: '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.  ' 'I understand. We will have a big group (about 10 people) so we are trying to have as much water as possible as well. If anyone gets dehydrated it'd be the end of the trip and hard to get everyone back to base. What's the fewest amount of bottles you're willing to accept?' '😮Two packages is the lowest I would accept.  There is one exception to that.  If you were willing to give up 2 firewood, then I would be willing to take 1 water.  I think I could trade some extra firewood for water at the campsite.'
Utterance: 'I understand. I am not willing to give up any firewood, but I'd be willing to do a trade of 1 food for 1 water. So 3 firewood for us, 1 water for us, and 1 food for us.  '

Ex Output:
No


Ex Input:
Context: 'I'm doing pretty good. I plan on camping with the family this weekend, how about you?' 'Nice. Same, it's over 100 degrees where I live. 🙂' 'Yikes! It's a bit colder up here, that's why I would like to bring some extra firewood to stay warm at night.'
Utterance: 'Oh, I see what you did there. No problem I have plenty of firewood for you buddy. 🙂'

Ex Output:
Yes


Ex Input:
Context: 'I was thinking maybe I could have a majority of the fire food and you can have a majority of the water and food. ' 'What exactly do you mean by majority? As in everything ?' 'I was more thinking 2 Firewood for me , 1 food and 1 water? The rest would be yours.'
Utterance: 'That is a promising bargain but I want at least 2 firewood, it makes for a fun time for my group.'

Ex Output:

No


