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 Q]: Context: 'Food as well teenage boys you know they eat a lot of food, and then a bit of firewood  but i am sure we will agree on something' 'Right...hmm. What do you say to 2 food, 1 firewood for me?' 'i am good with that how many waters do you want can i have 2?'
Utterance: 'Sure we can do that 🙂'
[EX A]: No

[EX Q]: Context: 
Utterance: 'Hello! 🙂 Let's work together on a deal for these packages, shall we? What are you most interested in?'
[EX A]: Yes

[EX Q]: Context: 'How are you today? Did you have any preferences on the supplies we will be trading?'
Utterance: 'I am good. How about yourself? I think I would like some firewood to start off with. We like to have bigger fires. What about you?'
[EX A]:
Yes