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: 'Pretty good!  I am looking forward to going on this camping trip with my family.' 'Same here! We had a couple bumps in the road though, as our freezer stopped working so all our food went bad ☹️' 'That is rough ☹️  We should try to split the resources equitably then'
Utterance: 'Ya definitely. I need food and firewood most. What do you need?'

SOLUTION: Yes

PROBLEM: Context: 'Hello there' 'Hello'
Utterance: 'What kind of items do you need?  I especially need water because I would like to do extra hiking and would need to hydrate.  '

SOLUTION: Yes

PROBLEM: Context: 'What are your preferences?  I always love having a big fire at night when I am camping and I do think water is more important than food.' 'I like to have a lot of food to keep my energy up, but I might need some firewood to cook that food. I can't wait for my camping trip.🙂'
Utterance: 'I love camping also!  Yes, I can see how you would need firewood if you want to cook your food.  So, food is more important to you than water?'

SOLUTION:
Yes