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.

Q: Context: 
Utterance: 'I need all three of the firewood and three water.  You can have all the food.'

A: No
****
Q: Context: 'hi, i am doing well' 'cool, the family is looking forward to the camping trip this weekend' 'same, I will need 3 food as I need food to survive, in return, you can have all the water'
Utterance: 'My kids are really eager to make s'mores and tell stories by the campfire. They do need some food though. But i am willing to give you the 3 food for 3 firewood and 2 water if that works for you?'

A: No
****
Q: Context: 'just a bunch of children under 5 who wont be able to gather firewood. so i desperately need at least 2' 'I see, well it sounds like you're going to need some additional food with those children. How about I provide you with some additional food and you can help me with my need for heat with firewood?' 'okay how i take all 3 food and 1 firewood?'
Utterance: 'The firewood sounds like a solid deal; I would need a little food though to assist me. The good news is since there's a stream near me, I won't need any additional water, so I am happy to provide you with all of the additional water.'

A:
Yes
****