TASK DEFINITION: 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.
PROBLEM: Context: 'Not completely aware but I do have a filter that I brought from home. What are your needs?' 'Ok me too! I am concerned the most with firewood as it is the basis for my camping activities: campfire, story telling, and producing heat. ' 'OK so how about you take 2 firewoods and 1 food'
Utterance: 'That works for me. May I have two waters since I have more of a need of water'

SOLUTION: No

PROBLEM: Context: 'My biggest concern is food and then water. ' 'I'm going to need quite a bit more water, at least 2 packages.  I would like at least 1 food. What do you think?' 'How about you take two water and 1 food and 2 firewood?'
Utterance: 'That's kind of what I was thinking.  That would work for me.'

SOLUTION: No

PROBLEM: Context: 
Utterance: 'Hello, great to see a fellow camper.  Planing on doing any hikes.  My family and mother-in-law are down getting some new trail maps.  We are looking forward to the long camping weekend.  Our bad luck was the airline loss two of our bags that had our food and water.  So i am hoping to get some more.🙂'

SOLUTION:
No

