Assertion: arrow's series | /r/HasProperty | super friends
Facets:
Source sentences:
text: Green Arrow was not initially a well-known character outside of comic book fandom: he had appeared in a single episode of the animated series Super Friends in 1973.
text: Green Arrow was not initially a well-known character outside of comic book fandom: he had appeared in a single episode of the animated series Super Friends in 1973.