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.

Context: 'That's good to hear. I am going camping this weekend and need some extra supplies. What about you?' 'That's great! I also have a comping trip planned. We will be having an all night dance party. I could definitely use some extra supplies. What are you in need of the most?' 'That sounds like fun. I am pretty good at hunting and fishing, so I really don't need the extra food. I would like some extra firewood however. That would help cook the food and keep animals and insects away at night'
Utterance: 'Ugh ☹️ I too could really use the firewood. We need that campfire going all night to be able to socialize. How about water? Do you have enough? Do you need more?'
Yes

Context: 'I'm great! Just getting excited to go camping and dreaming of all the food I'll eat! Do you have any extra food?' 'Let me ask you, do you need food most? If yes, what do you need second most?' 'I would love as much food as is available. I would also appreciate excess firewood, as I get cold.'
Utterance: 'Okay, it seems we both have the same priorities in food most and firewood second most. How about this, you take 2 packages of food, I will take 1. You give me 2 packages of firewood I will give you 1. We will then divide the water. Is that fair?'
No

Context: 'My biggest concern is food and then water. ' 'I'm going to need quite a bit more water, at least 2 packages.  I would like at least 1 food. What do you think?' 'How about you take two water and 1 food and 2 firewood?'
Utterance: 'That's kind of what I was thinking.  That would work for me.'

No