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 Input:
Context: 'Hi there.  I'm really looking forward to this camping trip!  Hope we can make a deal over these extra supplies.  🙂  I was hoping to do some hiking and swimming away from my campsite, so having some extra fresh water would be really helpful to me.' 'Hello there.  I too am looking forward to this trip.  Definitely need to decompress. '
Utterance: 'Sounds like it'll be great for both of us.  Is there anything extra you need?'

Ex Output:
Yes


Ex Input:
Context: 'OK ' 'Thank you very much. I am anemic so it helps to have all the firewood to keep warm.🙂' 'OK NO MENTION AND WHY YOU WANT FOOD'
Utterance: 'I tend to eat more food when I am active outside. I drink more water too because I don't want to get dehydrated.'

Ex Output:
No


Ex Input:
Context: '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.' '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'
Utterance: 'Or 1 wood for you and 2 of food and water?'

Ex Output:

No