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.

Q: Context: 'Hi! I like to hike so I really need more water. Could I take 2 packages of water and 1 of food and 2 of firewood?'
Utterance: 'I am ok with the water, i just would like one water and one food, but i would appreciate two firewoods, i get cold at night  '

A: No
****
Q: Context: 
Utterance: 'I want to make sure I'm well prepared for camping. How would you feel if I took 2 water, 1 firewood, and 2 food?'

A: No
****
Q: Context: 'Hello 🙂' 'Hello!' 'Which item do you need the most?'
Utterance: 'Firewood, due to the area that we are going to. How about you? '

A:
Yes
****
