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.

[EX Q]: Context: 'But you need firewood for leisure, whereas I need firewood for survival.' 'Well it will keep us warm at night, too. I am very keen on at least one firewood for myself. ' 'Ok. How about I take 2 firewood and all 3 food? You can have the rest.'
Utterance: 'Can I get at least one food?'
[EX A]: No

[EX Q]: Context: 'I think food, water, and firewood are all going to be fairly important.' 'I agree. I have diabetes, so water and food are super important to me. My diabetes makes me super thirsty and I have to make sure I keep my blood sugar under control with certain foods ☹️' 'I can definitely relate to that, I have family members with type 2 so I know how bad that can get'
Utterance: 'Yes definitely! It is a pain for sure, but I love camping so I still want to go! I just have to make sure I have all the supplies I need. '
[EX A]: No

[EX Q]: Context: 'So far so good.  What are your plans for your camping trip?' 'yes i guess you too. i will need more supplies like 3 foods, 2 firewood and1 water' 'I have not really camped before so I am looking for as many supplies as possible.  What about I get 3 food, 3 firewood, and 1 water. '
Utterance: 'funnny you but no. so what else will i be left with if i give you those. okay let say i get 2 food, 2 firewood and 1 water.'
[EX A]:
No