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: 'You must be a comedian.  We will need to come to a compromise because there's no way that's going to happen.  I am like a water buffalo so I'll need at least two waters.  In addition, my family is from the South and will need firewood as well.' 'I can't swim too. I think two waters will help me to survive on this trip and I will need at least two firewood to make fish or other food items for my family. ' 'You don't need this water to swim.  You can take two of the food if you're worried about food.  I will take two water and two firewood since I have a large family to nourish and keep warm.  Your initial suggestion of 3  waters and firewood is laughable.  Please provide a realistic compromise.'
Utterance: 'If I take two waters, 1 firewood, and 2 food supplies, this will help me during the trip. It seems as if you are more skilled than I am on a camping trip. Please consider my request☹️'
[A]: No


[Q]: Context: 'OK NO MENTION AND WHY YOU WANT FOOD' 'I tend to eat more food when I am active outside. I drink more water too because I don't want to get dehydrated.' 'OH OK '
Utterance: 'Do you have reasons for wanting food?'
[A]: Yes


[Q]: Context: 'I hello I need firewood to survive' 'oh my are you going somewhere cold? I could use the water, I am going on a charity event with kids from the Make A Wish foundation. Its going to be their first time!' 'Ok I will give you 3 waters if you give me 3 firewood'
Utterance: 'sure i can do that, what about the food then? how much food would you need for the tip?  can you hunt where you are going?'
[A]:
Yes