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: 'Okay. I need 3 package of fire woof and 2 pack of food and 2 pack of water.' 'Hmm ☹️ That does not leave me with much' 'In my team old age sicked peoples and kids are there so I need some extra.'
Utterance: 'Is firewood something you want the most? 🙂'

A: Yes
****
Q: Context: 'That's a good idea.  I'll trust you to do the coin flip.  ' 'Sure.  🙂  I'll grab a coin.' 'Calling tails.  '
Utterance: 'Looks like 2 to you!  So it's 3 water and 1 food to me then, 3 firewood and 2 food to you?'

A: No
****
Q: Context: 'I would like all the firewood and two packages of water. You can have the rest.🙂' 'I want all of the water, two firewood, and one food.'
Utterance: 'Why do you need all the water and little food?'

A:
Yes
****