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.

[EX Q]: Context: 'I need some firewood because I did not bring enough, I was thinking I could take 2 firewood, 1 food, and 2 water. What do you think?'
Utterance: 'I can do that for you!'
[EX A]: No

[EX Q]: Context: 'Yes, you're very kind. I desperately need some more water and firewood.' 'I'm glad we were able to work out something for both of us! I hope you have a great camping trip!' 'Sorry, just adjusting the numbers to what we agreed above! '
Utterance: 'My mistake, hypothermia is messing with my brain.'
[EX A]: No

[EX Q]: Context: 'I think if you let me have 2 waters I might survive this scourge!' 'I think that your reasons are very compelling.  I would also like to survive.' 'Oh, I want you too as well😮'
Utterance: 'Thank you partner!'
[EX A]:
No