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: '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
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Q: Context: 'Hello! I am happy to give you two of the waters and one of the fire wood. Would that work for you?' 'I could go for 2 of the waters-I get dehydrated easily so must have those. Would you consider 2 waters and 1 firewood?🙂' 'I would be okay with that, if I can have extra of the food?'
Utterance: 'I really don't need a lot of food when camping so I would be happy to agree to that!🙂'

A: Yes
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Q: Context: 'I'm a big fan of well seasoned food and mushrooms! Mmm.. 🙂 Do you think it would also be alright for me to have 2 of the 3 waters since I will be hiking a lot?' 'That would be fine.  I was hoping to have 2 but since I am only walking and you are doing more heavy duty hiking, you take them.  Agreed?' 'I really appreciate that. Do you think you will be okay with just 1 water since you have health issues?'
Utterance: 'That would be very nice, but I worry about you not having enough on the trail.  Dehydration would not be good.  I am pretty sure I can ration my supply to make it last.  🙂'

A:
Yes
****