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: 'Hello 🙂 Hope you have a good amount of supplies for your trip!' 'Not really! I will need you to give me 3 food, 2 water and 2 firewood.' 'Yea, that's not going to work for me. That would leave me with NO food, and only 1 water, and 1 firewood. Would you take that deal, if I offered it back to you?'
Utterance: 'Ok what will work for you?'

A: No
****
Q: Context: 'hello there my fellow camping friend'
Utterance: 'Hi! I'm most interested in acquiring firewood, since I don't want my fire to burn out on the trip. What are you looking for?'

A: Yes
****
Q: Context: 'How many of each extra package are you thinking you need?'
Utterance: 'I would prefer to take all of the firewood, split the food, and you could have all of the water.  What do you need the most?'

A:
Yes
****