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 elicit-pref strategy, otherwise output No. elicit-pref is a cooperative negotiation strategy. It is used to discover the preference order of the opponent in the negotiation.

[Q]: Context: 'You need a pack of each?' 'Yes, at least 1 of firewood, one of water and one of food.' 'Okay, that would work for me. I'm sure you have good reasons.'
Utterance: 'Do you have a small group, like I do?'
[A]: No


[Q]: Context: 'Hello, how are you? Looking forward to camping?' 'Oh yeah, that's for sure. What camping item do you prioritize?' 'I'm going to need some extra wood because I'm somewhat injured and can't really gather more.'
Utterance: 'Oh, I see. Well, I personally need lots of water to stay hydrated since I drank a lot already.'
[A]: No


[Q]: Context: 'Oh well that is something to consider. I love dogs. 🙂. I'd be willing to take less in that case, and let you have 2 of the waters. Would you be OK with leaving me with 1? I'd be willing to split the food up the same way (you get 2, I get 1).' 'That works. I know water is important. I promise I won't be using it to water plants or wash clothes!' '🙂 haha of course! I think we've come to a good agreement then! You get the 2 Waters, and I get Water. You get 2 Foods, and I get 1 Food. And I get the 3 Firewoods. Correct?'
Utterance: 'That is perfect for me and my dog!  Yes!'
[A]:
No