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 don't like food. my stomach is always full. I only drink water since im thirsty most of the time.' 'yeah i can understand buddy, but the fact is we can share some items. you are not getting food packages and getting packages alone which you preferred. Try some food packages too' 'Okay I agree what about this deal. I get 2 water, 1 firewood ,and 1 food package.'
Utterance: 'sounds good. but how much firewood will i get ? because i don't need it much'

A: Yes
****
Q: Context: 'I have a great risk of dehydration.  I really need those 2 extra packages of water. You can have all the extra food.' 'Why do you have a risk of dehyrdation? Because I believe all people do but I do understand some people are at a greater risk then others. Tell me why you are at risk?' 'I have a medical condition that requires medication, and this medication requires me to drink an extra amount of water or else I will dehydrate. '
Utterance: 'That is a problem. Does the medication require the use of fire or firewood as well?'

A: No
****
Q: Context: 'Hi, I would like two firewoods and two food. You can take everything else. Does that work for you?' 'That might work. What reasons do you have for needing those?' 'I want to make smores and a nice dinner'
Utterance: 'I feel like I might need more firewood, I'm staying in the desert and it gets cold at night.'

A:
No
****