instruction:
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.
question:
Context: 
Utterance: 'Hello.  What are your preferences for extra items for your camping trip?'
answer:
Yes


question:
Context: 'so you need 3 water, 2 firewood and 1 food?' 'Yes, I need 3 waters and 2 firewood and 1 food. I really believe the extra supplies will bring comfort in case something were to happen. what are your thoughts?' 'sorry, but I need alot of water too, you cannot get all 3'
Utterance: 'would you compromise with 2 waters, 2 firewood, and 0 food? '
answer:
No


question:
Context: 'The item that I need the least is firewood because I will dedicate myself to look it up at the camp. And you?' 'Yes I think we have the same preferences.  I do not get cold easily and will bring a heavy sleeping bag.  ' 'Ok, it gets a little complicated. But let's see what you think if I grab: 3 water 1 food and 0 firewood? And you would take: 0 of water, 2 of food and 3 of firewood'
Utterance: 'That is not a bad offer.  However, I would like at least 1 water for myself.  I would be willing to allow you 2 of the 3 waters though.'
answer:

No


