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: 'i'm good thank you, How are you doing today?' 'I am good, let's plan our camping trips. I am diabetes, so water is very important to me. what about you?' 'I need water too'
Utterance: 'what is the next thing you need the most/?'
[A]: Yes


[Q]: Context: 'Hi! I was hoping to get 2 packages of firewood, 2 packages of water and 1 package of food and you can have the rest.'
Utterance: 'Hello. Is there a reason you prefer more water and firewood to food?'
[A]: Yes


[Q]: Context: 'I brought purification tablets so I can make do with rainwater or river water.  How about you?' 'That's very smart! 🙂 Way to be prepared! I didn't think to do that.' 'So if we were to split the firewood more in your favor and I were to take all the food, and then we kind of split the water, I think we could maybe make a deal here?  🙂'
Utterance: 'I think that is definitely doable! I'd be glad to make a deal with you. Thanks for being so reasonable! 🙂🙂'
[A]:
No