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: 'so if i were to give you water what would i get ?' 'You'd be getting 1 water, 2 firewood, and 1 food' 'how much food are you willing to offer for water'
Utterance: 'We can go back to my original offer which was honestly more generous.. I get 2 Water, 1 Firewood, 1 food.. you get 1 water, 2 firewood, 2 food.. its honestly a better deal for you 🙂'
Example Output: No

Example Input: Context:
Utterance: 'Hi, I'd like 3 packages of food. I have diabetes and my blood sugar could drop.'
Example Output: No

Example Input: Context: 'Hello! What camping supplies are you looking for the most?'
Utterance: 'Hello! I would like more packages of food the most. What are you looking for?'
Example Output:
Yes