I want to know which companies are part of the Big Three. Do you know?
user
Sorry, I don’t have access to that data.  It would require me to do a search and compare data from a large number of sources.
assistant
Let me rephrase:  I want to know which CAR companies are part of the Big Three. Do you know?
user
Oh, right.  I can look it up, sure.  They are the Ford Motor Company, General Motors Corporation, and Chrysler Group LLC.
assistant
Which one is the biggest?
user
That would be the Ford Motor Company, based on revenue.
assistant
I want to know which companies are part of the Big Three. Do you know?
user
Sorry, I don’t have access to that data.  It would require me to do a search and compare data from a large number of sources.
assistant
Let me rephrase:  I want to know which CAR companies are part of the Big Three. Do you know?
user
Oh, right.  I can look it up, sure.  They are the Ford Motor Company, General Motors Corporation, and Chrysler Group LLC.
assistant
Which one is the biggest?
user
All three companies are huge.
assistant
I want to know which companies are part of the Big Three. Do you know?