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.

Input: Consider Input: 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'

Output: No


Input: Consider Input: Context: 'That would be great if you could! ' 'I can do that! What's your next highest priority? I would prefer 2 firewood as I need to be warm at all times and plan to camp in the cooler weather' 'I can easily give you two firewood! One should be more than enough for me. Especially since you helped me out with the food!'
Utterance: 'I would appreciate that! How do you feel about water?  I would like at least one water.'

Output: Yes


Input: Consider Input: Context: 'Hi there!' 'hello !🙂'
Utterance: 'What are your preferences?'


Output: Yes