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: 'Got it! I am going to need the most of food. There aren't any animals or berries that I feel safe eating where I'm going.' 'Well I think we can make a good deal then.  How many packages of food would you want?' 'Could we each do 3 of what we need the most? I get three food and you get three water? How do you propose splitting up the firewood?'
Utterance: 'We can do the 3 for 3 trade.  That works perfectly!  Its' going to be cold at night where I'm going.  What's it like where you're heading?'

Answer: Yes


Question: Context: 'Hi there! How are you?'
Utterance: 'Great! I'm very excited to go camping, how about you?'

Answer: No


Question: Context: 'Well, if we can't settle on an agreement i'm going to walk away. We agreed I will get all 3 extra packages of the food but I still wish for the 2 extra wood and 2 extra waters' 'no we agree that you would get 3 food, i would get 3 waters' 'It's agreed, I will get 3 extra packs of food, you will get 3 waters but the extra wood for my kids is needed how about I get 2 extra firewood?'
Utterance: 'i made a mistake i would like 3 wood and 1 water.  you can have the food and 2 waters'

Answer:
No