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: 'Hello' 'Hello! I am going on an expedition and am in need of provisions. The risk is much, the need is great, but the rewards are even greater! I am asking that you might allow me to have 3 firewood, 2 food, and 2 water.'
Utterance: 'Why do you need so much firewood?🙂'

Answer: Yes


Question: Context: 
Utterance: 'Hi there! Curious as to what's on your mind regarding each item. I have my own preferences, but will share after you.'

Answer: Yes


Question: Context: 'Okay, so how do you propose splitting the firewood?' 'Can we split a bundle, in the real world that would be cool.  ' 'I wish we could. I would be down for that. 🙂 That seems the most fair to me. How about you enter the trade deal on your end?'
Utterance: 'Deal. '

Answer:
No