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.

Example Input: 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.'
Example Output: No

Example Input: Context: 'What about you take 1 water and the firewood.  I take 2 waters and all the food' 'That leaves me with very little. Can I have 1 water, 2 firewood, and 2 food?' 'you would get 1 water and all 3 firewood.  I would get 2 water and all 3 food.  You have one less than me but the food is worth less'
Utterance: 'I will make it work. Let's make a deal!'
Example Output: No

Example Input: Context: 'Hey there! I'm assuming you enjoy going camping?' 'Yes I do, I am going this weekend. Are you going camping too?' 'Same! I try to go every other weekend.'
Utterance: 'Oh cool. What supplies do you prefer to take the most of?'
Example Output:
Yes