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: 'We only have 3 of each to divide up.. so yes, you're going to have to give me one more on an item.. but in exchange I'm giving you 1 more on two different items.  I'm getting 4 items in total, you're getting 5.. - You're essentially netting 11% more 'items' than I am in this deal. ' 'thats the point as you need water so badly' 'Correct.. I do.. but if you're not willing to budge on this where you're still netting more overall value I understand - I'm bummed but I understand.'
Utterance: 'im contented with  what i have but im willing to trade as yu need more water so i need t make a profit'

SOLUTION: No

PROBLEM: Context: 'Would it be possible to get an extra water also?  How do you feel about the firewood?  I wish we could split everything evenly.🙂' 'Me too. Firewood is the most important thing to me. We will be somewhere cold and we could use the extra warmth.' 'True.  How about I get 2 food, 2 water and 1 firewood. And that will leave you with 2 firewood, 1 water, and 1 food? '
Utterance: 'What do you need the extra water for?'

SOLUTION: Yes

PROBLEM: Context: 'Hi, I would like two firewoods and two food. You can take everything else. Does that work for you?'
Utterance: 'That might work. What reasons do you have for needing those?'

SOLUTION:
Yes

