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: 'Hi. Water is very important to me. '
Utterance: 'Hello, I don't really need water'

Ex Output:
Yes


Ex Input:
Context: 'I know but with my condition i may not make it, especially without more water.😮' 'you can make water by boiling water with all that extra firewood you got' 'you said I could have some firewood'
Utterance: 'Let me take 2 firewood, 2 water and you take the rest. You will have more than me overall'

Ex Output:
No


Ex Input:
Context: 'Hey, I was thinking that I could take all of the food items, and 2 of the firewood items. My friend has low blood sugar and they need the food in case they crash, and the warmth of the fire to maintain at evening.' 'Water is my highest priority, what is yours? Is it food?'
Utterance: 'Yes, food is my highest. It's necessary for my friend to keep extra around just in case he crashes. Why is water your highest priority?'

Ex Output:

No