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: 'Hi, this is my first time camping and I want to make sure I have enough stuff.  I would like three food, three firewood, and two water.  What do you think?' 'I have been camping a few times and pretty much know what I need to be comfortable and healthy.  Warmth and hydration are important for me.  So, I am thinking 2 firewood, 2 water and 0 food.' 'Since I have never been camping before, why do you think you need 2 firewood?'
Utterance: 'Unfortunately, I have arthritis so being sure to keep warm and the dampness away in the evening, heat is important for me.'

Output: No


Input: Consider Input: Context: 'Yes. Can you help me to give some extra fodd?' 'I am willing to give you the good, though it would help us--we have a large group.  I really would like to take the water.  We are camping out in a primitive campsite with no running water.' 'Ya sure. '
Utterance: 'Sorry for the type--I meant 'food' not 'good'.🙂'

Output: No


Input: Consider Input: Context: 'Hi, it is nice to be going camping. I do not have a very good sleeping bag and I can get cold at night. It would be nice to have extra firewood. I dont eat much so I do not need much extra food. Would you be willing to give me two packages of firewood for a package of food?' 'I enjoy camping as well. However, my campsite seems to be a bit chilly at night. I'd be willing to part with some firewood, yet I'd need quite a bit of food to compensate. I also have a stream nearby so water is plentiful if you need that as well.'
Utterance: 'I may be able to do something with regards to food. Do you have enough water?'


Output: Yes


