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: 'It will be nice to get out and explore the great outdoors, even if it is super hot!' 'I agree. What supplies could you use more of?' 'Water for sure, need to stay extra hydrated.  How about you?'
Utterance: 'Haha yup I had a feeling about that one. ;-) Yeah my wife has a bunch of crazy hikes planned so water is a must here too. What else?'
[EX A]: Yes

[EX Q]: Context: 'Hello How is preparing for your trip going?' 'Hi! I've made some mistakes so I need some extra supplies. ☹️ Which item do you need the most?'
Utterance: 'I need water the most we are campin  in arizona how about you'
[EX A]: Yes

[EX Q]: Context: 'I have a medical condition that require me to drink a ton of water. I also can only eat certain foods and I have 3 kids. The more food and water the better for us.' 'sorry to hear that. i too have kids but my health is ok so i can do with 1 water.' 'Thank you. 🙂 Would 1 food and 3 firewood work for you?'
Utterance: 'No problem🙂, i would be fine with 1 water, 1 food,and 3 firewood.'
[EX A]:
No