user: Extract the names of the companies that built the Pacific Railroad

assistant: The "Pacific Railroad" was built by the Central Pacific Railroad and Union Pacific Railroad.

user: Identify which car manufacturer is Italian or American: Maserati, RAM

assistant: RAM is American, Maserati is Italian

user: Choose the word which is different from the rest: hangar, platform, dock, park, bus stand

assistant: All except park are places to await for transportation