User: From the passage provided, extract the well-known superheroes from Marvel comic books.
Assistant: Well-known superheroes from Marvel include Spider-Man, Iron Man, Captain America, Thor, Doctor Strange, Hulk, Daredevil, Wolverine, Black Panther, and Captain Marvel.  Many Marvel superheroes also are part of teams such as the Avengers, X-Men, Fantastic Four, and Guardians of the Galaxy.