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.
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Question: Context: 'I am in dire need of firewood myself. I was planning on bringing food that needed to be cooked over flame. 😮' 'Well maybe we can find a way to split it!  This isn't a problem we can't solve.  Are you in need of food too, then?' 'That would be great! I don't need food as much as I am in need of firewood, to be honest.'
Utterance: 'I brought purification tablets so I can make do with rainwater or river water.  How about you?'

Answer: Yes


Question: Context: 'Hi, How are you?'
Utterance: 'Good how are things?'

Answer: No


Question: Context: 'Hello there 🙂' 'Hello, I hope we can work together on an offer that benefits both of us. Do you think it's OK?🙂' 'Yes definitely!  I am pretty easy to work with and would like a deal that will help us both out as much as possible.'
Utterance: ' The item I need the most is water because I need to hydrate to stay strong and achieve my goals. And you?'

Answer:
Yes