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: 'I need more food since I have a huge family. Can you give me all food i give you all water?'
Utterance: 'i need a little more food because i forgot that we where staying longer and i forgot some of my food. Can i give you 1 food package please? '

Ex Output:
No


Ex Input:
Context: 'Hello 🙂What would you like to do with this deal?'
Utterance: 'My friend ended up having a medical emergency and couldn't go to the store when I asked her to get food. Because of that, I would like 3 food packages. I had to go help her with the medical forms and didn't have time to shop'

Ex Output:
No


Ex Input:
Context: 'Hello.  I am very interested in the firewood and would be very willing to forfeit all the water.' 'oh really.  i am willing to make a negotiation with you on that for sure.  where are you plannign to camp?'
Utterance: 'I'm camping near a natural spring and will have all the water I need.  How are you planning to eat?'

Ex Output:

Yes


