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: 'Ok, would you do 1 firewood, 2 water and 1 food then?' 'Can I get 3 water and 1 firewood instead?' 'so I get 2 firewood, and 3 food? Ok I will agree to that'
Utterance: 'Great! Sounds like a deal! we have enough food for tonight so I think we will be good. '
No

Context: 'I am doing great' 'Great! For our camping trip, I would love to take all the water and firewood. You can have all the food. ' 'I really need the firewood,  It gets very very cold at night where I go camping.'
Utterance: 'I really needed firewood also.  I have brought my whole family camping which includes my 2 and 3 year old.  They really need to stay warm'
No

Context: 'oh really.  i am willing to make a negotiation with you on that for sure.  where are you plannign to camp?' 'I'm camping near a natural spring and will have all the water I need.  How are you planning to eat?' 'i have some spare cans but i am not too worried about it.  its a low prioirty for me '
Utterance: 'How about your water?  Won't you be going through a lot of water where you are going?'

Yes