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: 'Hi. I'm most interested in water. What's your highest priority?' 'I really need water too. I have a young baby and will do a lot of washing.' 'Okay. I'm not especially worried about food. What's your lowest priority?'
Utterance: 'I have enough food too. Can I take 2 water, 1 firewood and 2 food?'

Ex Output:
Yes


Ex Input:
Context: 'That is fair as there is no showers or sinks at my campsite so I am looking to take water :) ' 'We will likely also need to take water too. Need to be able to wash up.' 'That is fair, I also will need a good bit of firewood to keep warm as the campsite is in a colder area.'
Utterance: 'We dont care much for campfires. Leaves your cloths smelling for days!'

Ex Output:
Yes


Ex Input:
Context: 'okk i will give please explain how many pack you need ' 'that's so kind of you! could I please have 3? which item do you really need, I can give you 3 of it' 'okk i want 3 pack of firewood , 1 pack of food and 1 pack of water'
Utterance: 'could i have 1 firewood, if you'd like 1 pack food?'

Ex Output:

No


