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: 'That's a good idea.  I'll trust you to do the coin flip.  ' 'Sure.  🙂  I'll grab a coin.' 'Calling tails.  '
Utterance: 'Looks like 2 to you!  So it's 3 water and 1 food to me then, 3 firewood and 2 food to you?'

SOLUTION: No

PROBLEM: Context: 'Me too! Is this your first time?' 'I have been camping before, but it has been a while. You?' 'Same for me!!'
Utterance: 'What sort of extra supplies are you looking for?'

SOLUTION: Yes

PROBLEM: Context: 'I am also going camping! What do you think you're going to need the most of? What are your preferences?' 'It's going to be hot during the day where I'm going so I'll need some extra hydration.  So water is my main priority.' '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.'
Utterance: 'Well I think we can make a good deal then.  How many packages of food would you want?'

SOLUTION:
No

