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: 'I get really cold at night so I'd like to have extra firewood. ' 'Same. Plus I am planning on keeping a fire long into the night. Eating alot of food also helps keep you warm while sleeping. Perhaps I could offer you some extra food in return for some extra firewood?' 'Hmm I will have to think about this offer. How do you feel about the water packages?'
Utterance: 'I am a water junkie day to day but the place I am camping as a stream and I'm taking my water filter system, so I could offer you extra water in this case.'

A: Yes
****
Q: Context: 'hello. so what are you thinking about this whole situation?' 'Hey, I think that this is nice, we get to go camping and get extra stuff. But definitely need more food and firewood'
Utterance: 'Yeah, I think I'm okay with firewood, but I'd really like more food and water.'

A: No
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Q: Context: 'Hello, I would really like more food for my trip. If I can have all the food, and firewood, you can have all the water' 'Oh, that won't really work for me.  I was hoping to get extra food and water for this trip since I need water to take medication and would love the food to plan a special meal.  I'd like say, 2 food, 3 water and 1 firewood' 'I could give you 2 food, if I could have 3 firewood and 2 water'
Utterance: 'Hmm, how about I take 2 food and 2 water and you can have all the firewood?'

A:
No
****