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.

[Q]: Context: 'I want all the firewood and all the water please. 🙂' 'OK ' 'Thank you very much. I am anemic so it helps to have all the firewood to keep warm.🙂'
Utterance: 'OK NO MENTION AND WHY YOU WANT FOOD'
[A]: Yes


[Q]: Context: 'Hi! I look forward to making a trade with you that's good for us both.' 'Me too, hopefully we can get together on a deal.'
Utterance: 'I'm hoping so too. What's most valuable to you?'
[A]: Yes


[Q]: Context: 'That would be great if you could! ' 'I can do that! What's your next highest priority? I would prefer 2 firewood as I need to be warm at all times and plan to camp in the cooler weather' 'I can easily give you two firewood! One should be more than enough for me. Especially since you helped me out with the food!'
Utterance: 'I would appreciate that! How do you feel about water?  I would like at least one water.'
[A]:
Yes