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: 'Of course! Are you going camping too?' 'Yes.  I have 2 children so I was thinking that I will need extra water. 🙂' 'I too need extra water, but I'm willing to negotiate on the other things if you are! 🙂'
Utterance: 'If I take 2 waters, will you accept 2 firewood?'

Ex Output:
No


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.'
Utterance: 'Okay. I'm not especially worried about food. What's your lowest priority?'

Ex Output:
Yes


Ex Input:
Context: 'Okay, let's do that, and then split the food. Since there are only 3, do you want to flip a coin to see who gets 2 of those?' 'That sounds fair, how much food do you feel you need? ' 'I would prefer 2 because it's really easy to underestimate how much I could need.'
Utterance: 'That's fine, I'll take 1. I think I have enough with what was originally given. '

Ex Output:

Yes


