Question: Nina Auchinocloss Straight is the sister of which American writer?
Sentence (from "Nina Auchincloss Straight"): She is the mother of writer/director Burr Steers and artist Hugh Auchincloss Steers, half-sister of Gore Vidal, step-sister of First Lady Jacqueline Kennedy Onassis and socialite Lee Radziwill.
Relevant evidence: Yes