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: 'Hi how are you today? ' 'am fine and you?' 'I am good. Do you have any preferences on which items you would like most?'
Utterance: 'yes i really need a high amount of water and food.i have firewood in excess'
[A]: Yes


[Q]: Context: 'Would you be willing to take more firewood for less food?' 'Yes I think that sounds fair.' 'So if I take 2 foods and 1 firewood, you take 1 food and 2 firewood. What would be fair for water?'
Utterance: 'What if I take two waters and you take one water then?'
[A]: No


[Q]: Context: 'Hi, I will need alot of water as I need it to stay alive.'
Utterance: 'I agree, with camping i feel there are many uncertainties. Finding clean water would be too difficult, best to take as much water as possible. '
[A]:
No