question: Which director is also a producer, David Nixon or Lee Grant?
answer: David Nixon
context: Title: David Nixon (American football)
  Passage: David Nixon (born March 16, 1985 in College Station, Texas) is a former American football linebacker.  He was undrafted in the 2009 NFL Draft to the Oakland Raiders.  He played college football at Brigham Young University.
  Title: Tell Me a Riddle (film)
  Passage: Tell Me a Riddle is a 1980 American drama film directed by Lee Grant.  The screenplay by Joyce Eliason and Alev Lytle is based on the 1961 O'Henry award novella from Tillie Olsen's collection of short stories of the same name.  This is Grant's first film as director, and two more such films followed: "Down and Out in America" and "Staying Together".
  Title: David Nixon (director)
  Passage: David Nixon is an American film director and film producer.  He is the director and producer of "Letters to God" and a co-producer and assistant director of "Fireproof" and "Facing the Giants".
  Title: Lee Grant
  Passage: Lee Grant (born Lyova Haskell Rosenthal; October 31, during the mid 1920s) is an American actress and film director.
  Title: David Nixon (footballer)
  Passage: David Nixon (born 9 July 1988 in Paisley, Scotland) is a Scottish defender footballer for Airdrie United.
  Title: Staying Together (film)
  Passage: Staying Together is a 1989 American comedy-drama film directed by Lee Grant and produced by Joseph Feury (Grant's husband) and Milton Justice.  The film stars Sean Astin, Stockard Channing, Melinda Dillon, Levon Helm (of The Band), Dermot Mulroney, Tim Quill, and Daphne Zuniga.  Grant's daughter, Dinah Manoff appears briefly making this the only film project (excluding TV Movies) to involve Grant, Feury and Manoff.
citations: Lee Grant David Nixon (director)