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: 'Are you bringing several coats while camping?' 'Yeah, I might even have too many.I still need water the most,so I'm thinking I should take the water and you should take the firewood.' 'I can deal with that. I'd rather a little thirst than being cold.'
Utterance: 'Okay, So I'll take all three water, you'll take all three firewood package and I'll take one food package and you get two. What do you think? 🙂'
No

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? 🙂'
Yes

Context: 
Utterance: 'Hello! I would like make a deal with you on firewood, water and food! Are you interested in any items ?'

Yes

