This conversation actually happened
Me: Remember (the Old Saybrook Train station)?
William: Yes. I saw three electric trains go by. Two stopped and one didn't.
Me: The one that didn't stop was going really fast wasn't it?
William: Yes, very fast! Is it an electric train?
Me: Yes, it's an electric train and it's called The Acela. It goes very fast, like your shinkansen does.
William: Ooooh. What was the blue train called?
Me: Metro North.
William: and what was the dirty train called?
Me: Amtrack.
William: Yes. I saw three electric trains go by. Two stopped and one didn't.
Me: The one that didn't stop was going really fast wasn't it?
William: Yes, very fast! Is it an electric train?
Me: Yes, it's an electric train and it's called The Acela. It goes very fast, like your shinkansen does.
William: Ooooh. What was the blue train called?
Me: Metro North.
William: and what was the dirty train called?
Me: Amtrack.