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: 'I have the same needs. I have a low metabolism, so I need food and firewood to keep me warm and energized. Water I plan on filtering elsewhere.' 'Ok, well, I'd like to help. How about if I take 2 food and 1 firewood and 2 water, and you can keep the rest?' 'Would you mind if you got 3 food and 1 water and I got 3 firewood and 2 water?'
Utterance: 'I'd like some firewood though... Would 3 food and 1 firewood for me work?'

SOLUTION: No

PROBLEM: Context: 
Utterance: 'Hello! I am a mother of two and I have two kids who need extra food and water'

SOLUTION: No

PROBLEM: Context: 'What about I take 2 of the packages and you take 1? I know teenagers also drink a lot of water haha 🙂' 'He definitely does drink a lot of water, but he's in a growth spurt so 2 would be ideal. I'm happy to give up all firewood in exchange for the extra food!' 'okay that sounds like a better deal then! I will take all the firewood and 1 food, and you can take the 2 food packages'
Utterance: 'Awesome, I appreciate that. How does the water need look on your side?'

SOLUTION:
Yes