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.

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.'
No

Context: 'I'd be fine with taking less food.  So, I would get 3 firewood, 1 food, and 0 water.  Is that correct?' 'And I would get 0 firewood, 2 food and 3 water. That seems right to me.' 'That'
Utterance: 'It looks like we have to continue this conversation beyond a certain point before we come to a deal, so - what is your most cherished camping memory?'
No

Context: 'Hey there - looks like we are both going camping!  I'm from the South so firewood and water are a high priority for me.'
Utterance: 'Wow, thats awesome! Yes, I am! Well, that's great because water isn't super important for me. Firewood is though. '

Yes