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.

Q: Context: 'Hello, I am very cold and need food and wood to remain warm. How about I get 3 firewood, 3 food and 1 water?'
Utterance: 'That doesn't really work for me because then I would get only 2 waters and nothing else ☹️. What do you think is your highest priority?'

A: Yes
****
Q: Context: 
Utterance: 'What are your preferences for water?'

A: Yes
****
Q: Context: 'That's right. Since you would be getting food from your sister, while I am camping alone, you would be getting more food pretty soon. ' 'umm. I think the best and fair deal is a complete swap of water for food and you get 2 fire wood. ' 'Since the food can have some water and moisture in it, let's do 3 waters from me for your 3 food. How does that sound?'
Utterance: 'That sounds very fair! I love it you will love these steaks. 🙂🙂'

A:
No
****