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: 'Forest, for sure. Deserts have scorpions and tarantulas and I'm scared of those.' 'Amen! Me too! 🙂 I too was thinking of going to the forest. Is your forest going to be wet or pretty dry?' 'It'll be pretty dry. I don't want to catch a cold. '
Utterance: 'I wanted to a rainforest near where I live. I love listening to the rain. Did you think that you were going to need all of the firewood since you can get dry wood from the trees?'
[EX A]: Yes

[EX Q]: Context: 'Hello, I hope you are having a good day! I would like to know what packages you need the most.' 'Hello, I'm having a wonderful day.🙂 Thanks for asking. I hope yours is a wonderful day as well. I would like 2 firewood, 2 water, and 1 food. How about you?' 'Glad to hear it! I am really looking to get extra firewood, so I would like to make a compromise. If I gave you all the food, could I have more firewood?'
Utterance: 'I like watching the camp fire all night. What is your reason for needing more firewood?'
[EX A]: Yes

[EX Q]: Context: 'Oh yeah, that's for sure. What camping item do you prioritize?' 'I'm going to need some extra wood because I'm somewhat injured and can't really gather more.' 'Oh, I see. Well, I personally need lots of water to stay hydrated since I drank a lot already.'
Utterance: 'Yes, that's important. I don't need much.'
[EX A]:
No