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.

Context: 'I will submit a deal that might benefit us both.  ' 'We can work on that together' 'What is on your most needed item?'
Utterance: 'I need Food, what is yours?'
Yes

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?'
Utterance: 'Hello! Which item do you need the most?'
Yes

Context: 'Hello, I need supplies for the trip!🙂' 'Yep, me too🙂'
Utterance: 'I need 3 water, 2 firewood, and one food. It would be good if I got that!  🙂🙂🙂☹️☹️'

No