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 know how to filter water so you can have all of the water. I would like as much firewood as possible.' 'me too. I don't care about water since we are camping near a river.' 'I would consider giving you all food and water if I could get all of the wood.'
Utterance: 'Oh really? I think I am able to do it without firewood then. The kids will be full and probably won't ask for smores'
Example Output: No

Example Input: Context: 'I was hoping for a decent amount of food, just in case my new recipes don't work out, lol. 🙂' 'Haha, makes sense. I'm also interested in food. What if I take 2 waters and 1 food, and you take 1 water and 2 food?' 'I would be okay with that if I could also have all of the firewood. It seems fair since you will be getting the most water. Would that work for you?'
Utterance: 'That seems like a lot to compensate for just 1 water. How about I also get 1 firewood?'
Example Output: No

Example Input: Context: 'hello ,how are you' 'hi, i'm doing good! i really need food quite a bit because my kids are with me on this camping trip' 'okk i will give please explain how many pack you need '
Utterance: 'that's so kind of you! could I please have 3? which item do you really need, I can give you 3 of it'
Example Output:
Yes