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: 'Hi, how is your trip going? hopefully better than mine'
Utterance: 'My trip is going pretty so so too  im sorry to hear that about yours!! sounds like we both are gonna need some extra stuff? I was wondering if we could start with the water? any chance i could have it all and you can have all of something else? thoughts? im open to discussion'
[A]: No


[Q]: Context: 'Hi! I look forward to making a trade with you that's good for us both.'
Utterance: 'Me too, hopefully we can get together on a deal.'
[A]: No


[Q]: Context: 'So tell me, which is most important to you? What can't you live without?' 'The most important is water because I have kidney problem so i need some more water.Without water I can't live.' 'I understand that completely. Would you be willing to take 2 waters, and I take 1 water? I still do need some water for my family. I can't have anyone getting heat stroke. But you can have more.'
Utterance: 'Okay.But I need whole water to survive.'
[A]:
No