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: 'Hi! how are you doing? I hope you are getting things packed for the camping.' 'Hi there! I am doing well. I am getting things ready and so excited! How are you doing?' 'I'm great! and almost done with packing. and exited about the camping too. Waiting to explore and learn during the trip.'
Utterance: 'That sounds great! What do you prefer with the additional packages for camping?'
Example Output: Yes

Example Input: Context: 'i cant afford to give you all 3 waters because i would need some for myself' 'I completely understand, I have a large family coming along, I really need the extra supplies, as for the food and firewood are you okay with the amount? ' 'i am an avid water drinker. i can afford to give you 2 water for three firewood though'
Utterance: 'I have alot of children, and those little rascals can chug water like there is no tomorrow, will you allow me to get the 3 waters and you can have 2 firewood and and 3 foods, what do you think?'
Example Output: No

Example Input: Context: 'Hello, are you excited for your camping trip?'
Utterance: 'hii'
Example Output:
No