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.
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Question: Context: 
Utterance: 'I want all the water and all the food. What do you want?'

Answer: Yes


Question: Context: 'Hi, how are you today?' 'I'm good! I'm looking forward to my camping trip this weekend. How about you?' 'I'm good as well, I hope the weather works with me 🙂'
Utterance: 'Sending good luck your way! Any items in particular you need for your trip?'

Answer: Yes


Question: Context: 'Hi!  I want some additional packages of firewood, water, and food'
Utterance: 'Are you bringing guest?'

Answer:
No