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 get it, in that case and to be a fair deal. I will have 2 of food, 1 of water and firewood each.' 'That seems fair however I would like to have plenty of food also. I think it would be fair to have 2 firewood, 1 food and 2 water ' 'I ain't sure if you want 1 or 2 packages of food'
Utterance: 'I would like 2 packages of food'

Output: No


Input: Consider Input: Context: 'Hello, how are you?' 'Im good how are you?' 'I'm doing great, thanks.'
Utterance: 'How many of each supply would you like? what is your favorite?'

Output: Yes


Input: Consider Input: Context: 'Hello! I also need firewood. It is my highest priority. Then, I need water next as a prority. 🙂' 'Yes that matches with my needs as well I need to stay warm due to health conditions and need plenty of water due to medicines. ' 'We could split the firewood and water. I can take two water and one firewood. 🙂'
Utterance: 'Ok what about the food? how about you take two and ill take one?'


Output: Yes


