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: 
Utterance: 'Hello, what do you need the most for your camping trip?'

Ex Output:
Yes


Ex Input:
Context: 'I'm doing well. I'm trying to prepare for this camping trip. ' 'Me too.🙂' 'What are you looking for?'
Utterance: 'Firewood. I need 3. What do you need?'

Ex Output:
Yes


Ex Input:
Context: 'Hi, I really need water to stay hydrated during my camping trip because my food supplies are low. Do you have any to spare?' 'Hi.  I can't do that right now.'
Utterance: 'Is there anything that you might need? '

Ex Output:

Yes