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: 'That would be fine. I was hoping to have 2 but since I am only walking and you are doing more heavy duty hiking, you take them. Agreed?' 'I really appreciate that. Do you think you will be okay with just 1 water since you have health issues?' 'That would be very nice, but I worry about you not having enough on the trail. Dehydration would not be good. I am pretty sure I can ration my supply to make it last. 🙂'
Utterance: 'You're a good friend! I'm excited to embark on this adventure! 🙂🙂🙂'
No

Context: 'Hi there, good to connect with you. How are you today?'
Utterance: 'I am good, thank you. What are your preferences? I really need the extra food packages. We are doing a lot of hiking and mountain biking and there are no grocery stores for at least 50 miles.🙂'
Yes

Context: 'Wow.. Cool ' 'Are you prepared for the camp?' 'Yes A little.. But I would need extra camping items '
Utterance: 'Ok, I do too. What do you really need?'
Yes