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: 'That seems quite unfair. I really would like my camping trip to be enjoyable.' 'I understand. What part of the deal is unfair to you? You get the majority of the highest priority item (food) and I get the majority of the lower priority items (water and firewood).' 'I will have my two packages of food and only one package of firewood. I do not think I can make one package of firewood last for both of my food. '
Utterance: 'So is your counter that you get 2 packages of food, 0 of water, and 2 of firewood?'
Example Output: No

Example Input: Context: 'I'll give you another water and food' 'I think we have a deal.  To confirm, YOU get 1 firewood, 2 food, and 1 water?  If yes, please confirm.  I think this sounds fair.' 'Yep, it's correct'
Utterance: 'Ok.  I will submit the final offer.  I appreciate your offer. '
Example Output: No

Example Input: Context: 'Hi there! I was looking for 3 extra packages of food and 3 packages of firewood.' 'We can work a deal out. How's your day? 🙂'
Utterance: 'It's good, thank you 🙂 Which package is the most important for you to have on your trip do you think?'
Example Output:
Yes