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: 'I am doing great! camping is super enjoyable' 'Do you bring enough stuff?' 'I have some stuff, but I really need a decent amount of firewood. Gets really cold at night where we camp'
Utterance: 'I am fine with the cold although I might need some to set up the fire. I have a baby with me so I might need to heat up the milk or food. '
Example Output: No

Example Input: Context: 'Hi! I'm very excited for the upcoming camping trip!! 🙂'
Utterance: 'Me too! 🙂 What do you think about the extra supplies?'
Example Output: Yes

Example Input: Context: 'Hi there, I hope I would be able to leave with some needed items' 'Likewise! What are you in need of' 'The basics of man -  food and water'
Utterance: 'Ah, okay, I could use some of that too! Which one do you need most?'
Example Output:
Yes