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.

[EX Q]: Context: 'Yes, same here! I'm glad that we all have our own basic necessities, but extra is always wonderful. 🙂 What are you most interested in?' 'I am most interested in water! My husband and I are traveling with our newborn and we need as much water as possible!🙂' 'Ah, I see! I am in the same boat. We are camping somewhere where there is no source of water and it's very hot. Hm, let's see how to go about this'
Utterance: 'what else is a priority for you?'
[EX A]: Yes

[EX Q]: Context: 'Hi there.. we're looking forward to this camping trip.. hope you are, too!  Is there anything in particular you guys need / want out of the extra stockpile we've got?' 'Hello! Which item do you need the most?'
Utterance: 'Well we actually really NEED all three items.. but I know you might, too - so I want to make a deal that's fair for you.. is there anything in particular your family needs for the trip?'
[EX A]: Yes

[EX Q]: Context: 'ohh that's would be really difficult.However we can still sort things out' 'That is great to hear!🙂 How about you take 2 food, 2 water and 0 firewood? What do you think?' 'uhm.how about i have 3 water 2 foods and zero firewood?'
Utterance: 'Are you willing to budge on one water for me? I have 5 people in my group and they really could use one package of water. It is hot out nowadays. '
[EX A]:
No