_:ExUeUWVq1280 "african_american_authors_and_their_books". _:ExUeUWVq1280 . . "{\"query\": [ { \"/people/person/ethnicity\" : \"African American\", \"name\" : null, \"id\" : null, \"type\" : \"/book/author\", \"works_written\" : [ { \"name\" : null } ] } ]}". "Source: Freebase - The World's database". "African American authors and their books"@en. . . . _:ExUeUWVq1280.