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 "Wilma Mankiller"): She was the author of a national-bestselling autobiography, "Mankiller: A Chief and Her People" and co-authored "Every Day Is a Good Day: Reflections by Contemporary Indigenous Women".
Relevant evidence: No