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.

[EX 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? 🙂'
[EX A]: Yes

[EX Q]: Context: 'hello' 'Hello, what would you like for the packages?'
Utterance: 'we are cold and hungry so we need firewood and food the most, what about you?'
[EX A]: Yes

[EX Q]: Context: 'Do you have any preferences in regards to the firewood, food, and water? I would like us both to get what we need.' 'I get really cold at night so I'd like to have extra firewood. ' 'Same. Plus I am planning on keeping a fire long into the night. Eating alot of food also helps keep you warm while sleeping. Perhaps I could offer you some extra food in return for some extra firewood?'
Utterance: 'Hmm I will have to think about this offer. How do you feel about the water packages?'
[EX A]:
Yes