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: 'I would need 2 out of 3 as well.' 'Interesting - you're essentially saying that you need the majority of two of the three items. Hmm...' 'Yes, thats all. I need 1/3 food, 2/3 water, and 2/3 firewood.'
Utterance: 'Still not convinced in any way that you need more items in total over me. Please clarify!'
[A]: No


[Q]: Context: 'How much firewood do you need?' 'i need two food items and one water' 'I will take 2 waters, however I would like 2 food and you can have 1 food and 3 firewoods'
Utterance: 'one food is not enough i am pregnant and i need to eat many meals'
[A]: No


[Q]: Context: 'Hi there! How are you?' 'Hello good morning I'm well thank you.'
Utterance: 'Let's talk about what we need. First, I don't eat meat, so I really feel like I'd need a little extra food, as I couldn't hunt or forage for food at all. I feel like I could survive without a ton of water, but would need water, as I hike a lot and cant trust any sources'
[A]:
No