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: 'Yes I can't wait! So sick of being stuck at home. 🙂' 'It will be nice to get out and explore the great outdoors, even if it is super hot!' 'I agree. What supplies could you use more of?'
Utterance: 'Water for sure, need to stay extra hydrated.  How about you?'

A: Yes
****
Q: Context: 
Utterance: 'Hello, I will start out by saying that I would like to have 3 water because I do not have a nearby water source. What is your situation?'

A: Yes
****
Q: Context: 
Utterance: 'Hi! What sort of packages are you looking for today?'

A:
Yes
****