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: 'Hello, I was hoping we can chat. '
Utterance: 'Hi there. '
No

Context: 'So I get only 3 packages? 2 food and 1 firewood? ' 'Do you need more firewood?  I could compromise there.' 'How about I get 2 food and 2 firewood? You can get all the water plus 1 food and 1 firewood? '
Utterance: 'Yes that sounds fair.  Deal.  '
No

Context: 'Good morning! Are you excited to go camping this weekend?' 'Yes, how about you! We are headed to Joshua Tree NP to do some rock climbing and hiking. ' 'Ooh rock climbing! I'm definitely scared of heights, so that's out for me. I'm heading to the Puget Sound to camp near the ocean.'
Utterance: 'My wife is from the puget sound. Was just up there a month ago.  I am looking to take the food and water.  We have a large group and will be active.  We will have some hot and dry conditions in the desert. Some are high school age students with big appetites.  What are your preferences.'

Yes

