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: 'Hello. I am very interested in the firewood and would be very willing to forfeit all the water.' 'oh really. i am willing to make a negotiation with you on that for sure. where are you plannign to camp?' 'I'm camping near a natural spring and will have all the water I need. How are you planning to eat?'
Utterance: 'i have some spare cans but i am not too worried about it. its a low prioirty for me '

Ex Output:
Yes

Ex Input:
Context: 'Would you be willing to trade a piece of firewood for an extra water bottle? That will save me some time from chopping down extra wood.' 'no, best i can offer is i get 3 firewood, 2 water and 1 food' 'No thanks.☹️'
Utterance: 'ok, last deal, i get 3 firewood, 1 water and 1 food'

Ex Output:
No

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