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 really need 3 firewood because I am always cold.' 'If I gave you 3 firewood, would you give me 3 water? I can do without the wood, but the water is really important to stay hydrated.' 'I can give you 2 water, but I have to have 1 to help me when I am cooking.'
Utterance: 'What about the food? How much food do you need for camping?'

Answer: Yes

Question: Context: 'Hi, I hope we can work together to get an offer that benefits both of us.🙂' 'I agree! Nice to meet you... I have two boys who always eat! Any chance I canget 2 food?'
Utterance: 'Food is the item of greatest value to you?'

Answer: Yes

Question: Context: 'hmm, here's what I'm willing to do. I will take all the water, one firewood and one food.' 'That doesn't sound fair to me.' 'Ok, what would you counter offer with?'
Utterance: 'I would like all 3 packages of firewood and 1 package of food. You can have the rest.'

Answer:
No