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.

Context: 'How would you feel about giving me some firewood for food?' 'Maybe, I need food too but I want firewood the most.' 'Do you have a deal to offer?'
Utterance: 'I would like 2 firewood, and I don't care about anything else. I would give you 2 water and 3 food'
No

Context: 'I don't think you that fat, your lipids will help you stay warm and full out there, haha' 'Im not as good at you at foraginf for food and water i probably dont have the experience as you do being in the outdoors and living off the land.🙂' 'With the extra firewood, you can hunt for fish and other animals outside to thrive'
Utterance: 'i cant hunt if i dont have the proper nutritional value to make sure i can make it that long.  how about i get 2 firewood 2 water and 1 food you get the rest'
No

Context: 'hello!' 'Hello.'
Utterance: 'Can i kindly know your preferences please?'

Yes