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: 'Hello, I was hoping we can chat. '
Utterance: 'Hi there. '

A: No
****
Q: Context: 'Hello there, I'm trying to get some more water. I take medication that makes me dehydrated. Is there something you mite be looking for in exchange?' 'I'm sorry to hear about that -- I've been needing water because my child is with me and I can't let them get dehydrated since they're so young. Could we split the other items?'
Utterance: 'We mite can do that. What do you need more of?'

A: Yes
****
Q: Context: 'I would prefer to have all 3 water, but I think I can make an exception since you have offered me all 3 food 🙂 Just to confirm, this means that you get 3 firewood and 1 water and I get 2 water and 3 food. Correct?' 'Yes 🙂 Do you want to make a deal?' 'Sure 🙂'
Utterance: 'Thanks good negotiating with you! 😮'

A:
No
****