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 Input:
Context: 'Ah, okay, I could use some of that too! Which one do you need most?' 'water. How about you?' 'I could use water, too, but I'd be willing to give some up if you give me more items overall'
Utterance: 'What is your priority item to get the division started?'

Ex Output:
Yes


Ex Input:
Context: 'I get dehydrated easily. I need to water so that doesn't happen. 🙂' 'Hmm.  And why do you need so much food?' 'I need an extra supply of food, as I exercise a lot! 🙂'
Utterance: 'Hmmm.  And the firewood?'

Ex Output:
Yes


Ex Input:
Context: 'Hello.  What are your preferences for extra items for your camping trip?' 'hello'
Utterance: 'Do you have a preference for any extra items for your camping trip?'

Ex Output:

Yes


