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 think I'm good. I'm not 100% sure. My husband likes to do adventures on the fly. He got these water filter straw thingies from Amazon and said that if we run out of the water I packed, that we can drink the water in the lake but I don't really trust the straws.' 'Sounds like you need water too. How about you take 2 water, 1 food, and 1 firewood?' 'I don't know, you said you're worried about having enough water too. I'm excited to make campfires though! My kid hasn't had a campfire smore yet so I'm super excited to see his face of joy when he experiences it.'
Utterance: 'I am worried about water but also could use a little more food, just in case. I am looking forward to a nice campfire as well!'
[A]: No


[Q]: Context: 'Howdy! Looking for firewood, water and food--really trying to get 3 packages of each, want to make sure my family has enough supplies for camping. I don't want anyone injured or our vacation cut short.' 'Ok.  I am looking to have one package of water and on package of food.'
Utterance: 'Is there any way you could let us have 3 packages of each? I'm just trying to make sure my family has enough, we don't get to get out in the woods that often. It's really important to us.'
[A]: No


[Q]: Context: 'I would prefer to have 2 waters since I agreed to give you all the firewood.' 'But I agreed to give you all the food. Now that you want two waters, I think I should have some food because I left a bag of my food at home. You get two waters and I get one of the food. Then you get the majority of both the water and food.' 'So I get 2 waters/2 food/0 firewood, and you get 1 water/1 food/3 firewood? I think that works for me.'
Utterance: 'Yes, that's the plan. By the way, what do you need all that food for? You didn't say. I'm just curious.'
[A]:
Yes


