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 Q]: Context: 'Hi! I like to hike so I really need more water. Could I take 2 packages of water and 1 of food and 2 of firewood?' 'I am ok with the water, i just would like one water and one food, but i would appreciate two firewoods, i get cold at night  '
Utterance: 'We both sound pretty reasonable! So you think you need 2 firewood?'
[EX A]: No

[EX Q]: Context: 'I really don't want to be without water, how about 2 water and 2 firewood for the 3 packages of food?' 'I just want to make sure I understand you I get 2 waters and 2 firewood and 0 food. ' 'That's right. Since you would be getting food from your sister, while I am camping alone, you would be getting more food pretty soon. '
Utterance: 'umm. I think the best and fair deal is a complete swap of water for food and you get 2 fire wood. '
[EX A]: No

[EX Q]: Context: 'Hi. Water is very important to me. '
Utterance: 'Hello, I don't really need water'
[EX A]:
Yes

