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: 'How would you feel about giving me some firewood for food?' 'Maybe, I need food too but I want firewood the most.' 'Do you have a deal to offer?'
Utterance: 'I would like 2 firewood, and I don't care about anything else. I would give you 2 water and 3 food'
[A]: No


[Q]: Context: 'Hello! 🙂' 'I hello I need firewood to survive'
Utterance: 'oh my are you going somewhere cold? I could use the water, I am going on a charity event with kids from the Make A Wish foundation. Its going to be their first time!'
[A]: No


[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?' '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?'
Utterance: 'Well, there has to be an item that you need the most. If you tell me what you need the most, we can try to make a deal around it.'
[A]:
Yes