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: 'Looking forward to this camping trip! I am hoping we can find something amicable with these additional resources.' 'I'm excited too 🙂. Things have been stressful lately. What are some things that you value most?'
Utterance: 'It's supposed to be chilly where we are heading and I could really use some extra firewood. 🙂 What about you?'
[EX A]: Yes

[EX Q]: Context: 'Hi! What sort of packages are you looking for today?' 'Hi there! I am looking to have 3 packages of firewood, 2 packages of food, and 1 package of water please. '
Utterance: 'Oh we have similar priorities 🙂I am also interested in getting firewood, because I have a condition that makes me very cold, colder than the average person, so I need to make sure I have enough for the trip. Why do you want food'
[EX A]: Yes

[EX Q]: Context: 'Hi there, I hope I would be able to leave with some needed items' 'Likewise! What are you in need of' 'The basics of man - food and water'
Utterance: 'Ah, okay, I could use some of that too! Which one do you need most?'
[EX A]:
Yes