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 have the same needs. I have a low metabolism, so I need food and firewood to keep me warm and energized. Water I plan on filtering elsewhere.' 'Ok, well, I'd like to help. How about if I take 2 food and 1 firewood and 2 water, and you can keep the rest?' 'Would you mind if you got 3 food and 1 water and I got 3 firewood and 2 water?'
Utterance: 'I'd like some firewood though... Would 3 food and 1 firewood for me work?'
[A]: No


[Q]: Context: 'Yes that would be great 🙂🙂' 'Ok, what item do you need the most and which item do you need the least? That information would help me think of an offer that suits both of us.🙂' 'I need   food and water the most . There are 3 of us.🙂'
Utterance: 'Your most needed item is water or food?'
[A]: Yes


[Q]: Context: 'Hello! I don't mind giving you more of the food as long as I could have more of the water and firewood. 🙂' 'Well, I do need some of each, what about I take 3 food and 1 each of the other two?' 'I don't mind taking 2 of the water as I need it for a medical condition and 2 firewood however I would like to get 1 of the food.'
Utterance: 'You need water the most?'
[A]:
Yes