With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Bojack Horseman's creator is also American.
text_B: Webster Campbell -LRB- January 25 , 1893 -- August 28 , 1972 -RRB- was an American silent film actor , director , and screenwriter .. director. Film director. American. United States. silent film. silent film. He began screenwriting in 1913 and became an actor in 1915 .. He became primarily a director in 1921 .. director. Film director. By 1936 , he retired and wrote short stories .
not_related.