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 am doing well! Excited to be on this camping trip! I am glad we have all the basic supplies already.' 'Agreed! I am running low on firewood, unfortunately, which I need to cook food and stay warm. ' 'Oh no! That's unfortunate! Luckily, I think I have plenty of Firewood for myself so I think it would be okay for you to have more of that if needed. I don't know if I have enough food. I love to snack all day!'
Utterance: 'That's awesome! And oh no! I have a medium amount of food so we can work that out! How are you doing on water?'

A: Yes
****
Q: 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?'

A: No
****
Q: Context: 'We will be in an area where there is not much firewood to collect. You have to bring it in.  We hope to cook with it and keep warm in the evenings.  I am hoping to take at least 2 firewood packages.' 'I will give you water. Firewood also need for me because of my health condition i want some warm.' 'Will one extra firewood be enough to keep you warm?'
Utterance: 'I'm not sure why you entered a deal we did not agree on.  I can leave you the three food and one firewood.'

A:
No
****