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: 'I don't think the weather is going to be that hot, and I don't plan on doing any hiking.  So, I should need much extra water.' 'Cool! I think I've got a pretty good proposal for you for our supplies. Is it okay with you if I send a possible deal we might be able to make for what we have available for our trip? 🙂' 'Go ahead🙂'
Utterance: 'I would like to do some hiking before getting back to the campfire. I especially like hiking when the weather is cooler. It works up my appetite for those hot dogs and marshmallows, which are one of the best parts of camping for sure! 🙂'
Example Output: No

Example Input: Context: 'HI, I will have all of the packages of food and 2 waters and 2 firewood and you can have the rest. Unless none is needed for you then I will take them all.' 'i will need 3 firewood packets.  I have a terrible disease that prevents my circulation from working properly.' 'That does sound bad. I am going camping and my kids might want to stay up late so I will need extra firewood for this to keep light and more warmth. I will take all 3 extra of the food and the water but I need 2 firewood also.'
Utterance: 'no that won't work.  I will give you 3 food and 1 water.  I will take 3 wood and 2 waters.'
Example Output: No

Example Input: Context: 'Perfect 🙂 I think that sounds like a good deal for both of us!' 'yes i deal with u' 'Ok so when we can submit, this will be the breakdown: '
Utterance: 'I thought we agreed that I get 2 waters, 1 food, 1 firewood and you get the rest?'
Example Output:
No