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.
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Question: Context: 'Hi there, how are you doing?'
Utterance: 'I am great. Excited to go camping. How much food do you need?'

Answer: Yes


Question: Context: 'Hi i'm really excited for camping. I am looking for food and water ' 'Yes, a much needed getaway. Oh my, we need the same provisions! How would you be with receiving two waters, one food package, and two of the firewood?' 'I think I would be able to make that work. What are you looking forward to while camping? '
Utterance: 'Mainly cooking because I love to eat. It will be fun this time because I am leaving the kids at home. I also love swimming if we can find a river or big stream. How about you?'

Answer: Yes


Question: Context: 'Sure that sounds fair. Thank you. Besides water what do you need for your trip?' 'great. Then can you give 2 food instead? We eat a lot and need more to go through the night...' 'Ok I understand. Since you're willing to give me 2 water I can give you 2 food. Would it be ok then if I ask for 2 firewood? The kids were talking about making s-mores'
Utterance: 'I can give you one firewood. I need more to boil the water from the river since you will get more water. How about that?'

Answer:
No