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.

Context: 'I really appreciate that. Do you think you will be okay with just 1 water since you have health issues?' 'That would be very nice, but I worry about you not having enough on the trail. Dehydration would not be good. I am pretty sure I can ration my supply to make it last. 🙂' 'You're a good friend! I'm excited to embark on this adventure! 🙂🙂🙂'
Utterance: 'Me too! So let me clarify: I will take 2 firewood, 1 water and 1 food. You will take 1 Firewood, 2 water and 2 food. Is that right. 🙂🙂🙂'
No

Context: 'I would want to keep at least one packet of food for myself, unless you want to just swap 3 firewoods for 3 packets of food, to keep it simple?' 'I like your plan. It is simple. I will agree to that.' 'So all that is left is water, i guess i should atleast drink alot of it if i wont eat much haha 🙂'
Utterance: 'For sure, and you will need some way to put out the fire. 😮'
No

Context: 'That seems fair. How about water. How would that be split? I'm very concerned.' 'Me too. There is little natural sources where I'm going. ' 'I'm not familiar with my surroundings. None of us going have ever been to this spot.'
Utterance: 'I mean I would give two waters if I could get one more food. So 2 water for you and 2 food.'
No