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.

Example Input: Context: 'Hello! I am a mother of two and I have two kids who need extra food and water' 'Okay, I need food and water too unfortunately. We can discuss this.🙂'
Utterance: 'Alright... my baby is on formula and needs water for her bottles. My son snacks all day and really needs food. Otherwise, he will starve and won't thrive'
Example Output: No

Example Input: Context: 'I'm looking forward to my camping trip! What are you trying to collect for your trip?'
Utterance: 'Me too! It will be great to finally get out of town for a few days. I mostly need more firewood to keep the wife nice and toasty. How about you?'
Example Output: Yes

Example Input: Context: 
Utterance: 'Hello, what is your preference for supplies?  I would prefer to have as much extra firewood as possible, but am relatively indifferent to the rest.'
Example Output:
Yes

