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: '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: 'So could I. How about we split the firewood?' 'How about I take 2 firewood but you can have 2 waters? Water is pretty important and I have a little extra.' 'That sounds fair.'
Utterance: 'How are you on food? '

A: Yes
****
Q: Context: 'I need 3 water, 2 firewood, and one food. It would be good if I got that!  🙂🙂🙂☹️☹️' 'Oh, that's not possible.  Sorry☹️' 'Sry for the extra emoticons, laptop's glitching apparently. Well, what can you give me or we come to a deal on? 🙂'
Utterance: 'Well, let me think on that.  Why do you need so much water for a starter?'

A:
Yes
****