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.

Ex Input:
Context: 'Well I think we can make a good deal then.  How many packages of food would you want?' 'Could we each do 3 of what we need the most? I get three food and you get three water? How do you propose splitting up the firewood?' 'We can do the 3 for 3 trade.  That works perfectly!  Its' going to be cold at night where I'm going.  What's it like where you're heading?'
Utterance: 'It's going to be pretty warm where I'm going, but it's also variable. How do you feel about you get 2 wood and I get 1?'

Ex Output:
Yes


Ex Input:
Context: 
Utterance: 'Hello there'

Ex Output:
No


Ex Input:
Context: 'hello how are you' 'i'm good thank you, How are you doing today?' 'I am good, let's plan our camping trips. I am diabetes, so water is very important to me. what about you?'
Utterance: 'I need water too'

Ex Output:

No