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.

Context: 
Utterance: 'hello'
No

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. '
No

Context: 'Hi, how are you today?' 'I'm good! I'm looking forward to my camping trip this weekend. How about you?' 'I'm good as well, I hope the weather works with me 🙂'
Utterance: 'Sending good luck your way! Any items in particular you need for your trip?'

Yes