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: 'I think so too. I have a medical condition - type 1 diabetes - that makes it important to bring extra water and food. I'd like to request more of those two items.' 'I don't have a problem with you having extra water.  I'll give you all the water, if I can have all of the firewood.' 'I think that's more than fair. That only brings up the food to be divided. One of us is going to have to take less.'
Utterance: 'I'd be fine with taking less food.  So, I would get 3 firewood, 1 food, and 0 water.  Is that correct?'

Ex Output:
Yes


Ex Input:
Context: 'Being that you're getting 2 of 3 of the item (food) that for me is the highest value, I think it's only fair that I get all 3 of the medium value items (firewood) and one of the low value item (water). That would give me 5 packages and you 4 packages, but 2 of 4 of your packages are the high value items.' 'Okay then. I agree with you.. Shall we finalize our deal. I will take the 2 packages of food and 2 packages of water.r.🙂' 'Yes, I find that an acceptable deal.'
Utterance: 'Okay. Nice to meet you. Have a nice day🙂'

Ex Output:
No


Ex Input:
Context: 'thanks! where do you plan on camping? I know popular places are worried about spreading Covid and a lot of offices that give out camping permits are closed.' 'We're going to check out Acadia National Park. I'm not totally sure on the details, I'm letting my boyfriend plan and I'm just handling the packing haha' 'Lol, that's totally understandable. Are you planning to make any campfires?'
Utterance: 'Some, but I'm not too worried about my firewood stock. I'm pretty sure there's a decent amount of wood out there in the park.'

Ex Output:

Yes