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: 'What are your preference what would you need most?' 'I need to keep the fire burning so i need firewood most. What about you?'
Utterance: 'I dont need the firewood as much. '
[A]: No


[Q]: Context: 'Doing great!  How about yourself?' 'Pretty good, Monday's are always bit of a struggle though! ' 'Tell me about it!  With this pandemic it seems like all days are Mondays 🙂'
Utterance: 'Too true! Anyways, what is the item that you prefer the most for this camping adventure? 🙂'
[A]: Yes


[Q]: Context: 'We could do without the water as well. I'm willing to trade you 3 firewood for 3 food and 2 waters' 'We need some firewood too, though! ☹️ Let's try to make a deal that benefits us both! 🙂 Could I have 1 firewood, 3 food, and 3 waters?' 'I meant I would give you my firewood, what would you trade in return?'
Utterance: 'Oh sorry for the confusion. 😮 In that case, thank you for the generosity! 🙂 How about if I have 3 firewood, 1 food, and 1 water?'
[A]:
No