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.

Input: Consider Input: Context: 'Hello, I would like to keep the 3 extra packages of firewood an 2 extra packages of water.  You can have all 3 packages of water and 1 package of food.' 'That's just too big of an ask. How about I get 3 firewood and 1 water and you can have the rest' 'I really need the extra firewood.  I hiked 5 miles o this camping spot and I need the extra firewood to stay warm and to keep the wild animals away at night.'
Utterance: 'I really need some of the firewood too. I am expecting a big group of people to attend, and I can really use it. it gets really cold at night where we camp. What do you suggest is a more fair deal to the both of us?'

Output: No


Input: Consider Input: Context: 
Utterance: 'I want to make sure I'm well prepared for camping. How would you feel if I took 2 water, 1 firewood, and 2 food?'

Output: No


Input: Consider Input: Context: 'I agree.' 'I myself love food, so food is a big deal to me. ' 'Ok.  I like water over firewood.'
Utterance: 'Yeah, firewood isn't really something that's "essential" I'd have to say. Yeah, you need it, but still.'


Output: Yes


