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: 'Hi, I am great 🙂 How are you? I would be happy for you to have two waters if I can have one. I would also like to have three things of food. I love cooking outside, so I would love to make large delicious meals for my group to enjoy' 'That sounds amazing and delicious! maybe we can compromise? Maybe, I can get all 3 waters and you can have all 3 Foods? what do you think? ' ' I would agree to that if I can also have two things of firewood. I am going to need a lot of wood, so I can cook the meals I am making 🙂'
Utterance: 'I completely understand, thank you for compromising with water and food. Wished we had 4 firewoods to divide and share it equaly, may I ask how long will you be camping for? Im afraid I need 2 firewoods as well, maybe we can see who has the greater need? '

Output: No


Input: Consider Input: Context: 'Hi, I am looking at extra items for my camping trip and would like to have 3 firewoods, 3 foods and 2 waters.' 'Hey, I am excited to go camping too!  Would you mind sharing your top priority items with me so that we can come up with a fair deal?  Ideally I would love 3 firewoods, 3 foods, and 2 waters just like you aha.  But perhaps we can each get at least 3 packages of our highest priority item '
Utterance: 'Hmmm, I think I really need the firewood.  I brought softwoods and they burn out quickly so I don't think I'll have enough wood to keep me going through the night. I get kinda scared without the fire.  What is your priority?'

Output: Yes


Input: Consider Input: Context: 'Well, I do need some of each, what about I take 3 food and 1 each of the other two?' 'I don't mind taking 2 of the water as I need it for a medical condition and 2 firewood however I would like to get 1 of the food.' 'You need water the most?'
Utterance: 'I am constantly thirsty and having water on hand is needed. Why is gathering food an issue for you?'


Output: Yes