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: 'Yes that would be great 🙂🙂' 'Ok, what item do you need the most and which item do you need the least? That information would help me think of an offer that suits both of us.🙂' 'I need   food and water the most . There are 3 of us.🙂'
Utterance: 'Your most needed item is water or food?'
Example Output: Yes

Example Input: Context: 'hello'
Utterance: 'Hello, what would you like for the packages?'
Example Output: Yes

Example Input: Context: 'hello' 'Hi friend. How is your day?'
Utterance: 'yes good, what you want?'
Example Output:
Yes