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: 'Hi. Can you help me get supplies for my camping trip?🙂' 'Hello fellow camper! I'm pretty sure I can help you. 🙂' 'Okay, great! What do you need the most?'
Utterance: 'I am looking for food, me and the kiddos need to eat many snacks for energy while exploring hiking trails. What about?'
Yes

Context: 'I see. And I would like 2 extra packages of Food and 2 packages of Water as well.' 'I have a great risk of dehydration. I really need those 2 extra packages of water. You can have all the extra food.' 'Why do you have a risk of dehyrdation? Because I believe all people do but I do understand some people are at a greater risk then others. Tell me why you are at risk?'
Utterance: 'I have a medical condition that requires medication, and this medication requires me to drink an extra amount of water or else I will dehydrate. '
No

Context: 'hello' 'Hey, how are you?' 'I am doing good. Thanks. Which item do you need the most?'
Utterance: 'I was thinking firewood, because the most fun I have camping is roasting marshmellows and hanging out around there. How about you?'
Yes