Question: Mankiller is a 2017 documentary film directed by Valerie Red-Horse Mohl, concerning the life of Wilma Mankiller, was a community organizer and the first woman elected to serve as chief of which organization?
Sentence (from "Mankiller (film)"): Mankiller is a 2017 documentary film directed by Valerie Red-Horse Mohl and executive produced by Gale Anne Hurd, concerning the life of Wilma Mankiller.
Relevant evidence: Yes