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.

[EX Q]: Context: 'Would they be okay with 2 food?  Otherwise can give you an extra and I can take either an additional water or firewood 🙂' 'I have a great offer.  How about I take 2 food, 2 firewood and 1 water and you will get the extra water your camp needs!!' 'We place a premium on the water.  That's the same amount of water, do you mean we take 3?'
Utterance: 'I do need some extra water.  So I will need to take 1, but our preference is food and we would need firewood to cook it on.  if you're OK with this, I will submit it.  Its a great deal I think and we'll both get what we need'
[EX A]: No

[EX Q]: Context: '🙂 I am fine with it. How about the firewood?' 'i'll take 2, you can have 1? ' 'Firewood is my second priority. Can I have 2 of firewood?'
Utterance: 'okay🙂 is it cold so you want firewood?'
[EX A]: Yes

[EX Q]: Context: 
Utterance: 'Hi - I'm so excited for our camping trip.  I'm most excited about getting to eat food that I normally don't when I am home'
[EX A]:
No