Question: Which director has won an Oscar, Ron Shelton or Ken Mora?

full_context: Document 1: Ken Ralston: Kenneth "Ken" Ralston (born 1954) is an American visual effects artist, currently the Visual Effect Supervisor and Creative Head at Sony Pictures Imageworks. Ralston began his career at the seminal commercial animation and visual effects company, Cascade Pictures in Hollywood, where he worked on over 150 advertising campaigns in the early 1970s. In 1976, he was hired at Industrial Light & Magic by Dennis Muren to help George Lucas create the effects for "Star Wars". He remained in ILM for 20 years before joining Sony Pictures Imageworks as president. Ralston is best known for his work in the films of Robert Zemeckis.
Document 2: Ken Davitian: Kenneth "Ken" Davitian (Քեն Դավիթյան, born June 19, 1953) is an American comedian, who is best known for his role as Borat's producer Azamat Bagatov in the 2006 comedy film "Borat".
Document 3: Ron Singleton: Ronald Lee Singleton (born April 15, 1952 in New Orleans, Louisiana) is a former American football offensive tackle in the National Football League. He was drafted by the San Diego Chargers in the fourth round of the 1976 NFL Draft. He played college football at Grambling State. He is mentioned in The Blind Side, by Michael Lewis.
Document 4: Ron Shelton: Ronald Wayne "Ron" Shelton (born September 15, 1945) is an American Oscar-nominated film director and screenwriter and former minor league baseball infielder. Shelton is known for the many films he has made about sports.
Document 5: Frank Kostenko Jr.: Frank Kostenko, Jr. is a film director, assistant director, producer, and sometimes actor whose films include "Man on Fire", "The Last Samurai", "We Were Soldiers", "", "Slackers", "The Hire: Beat the Devil", and "Wishmaster" among many others.  Currently, he is the CEO and Executive Producer at PAC RIM Media (www.pacrimmedia.com), which he co-founded with Neal Allen.
Document 6: Nolan Ryan's Baseball: Nolan Ryan's Baseball (known in Japan as Super Stadium (スーパースタジアム ) ) is a baseball video game endorsed by the retired baseball player Nolan Ryan; one of the most popular baseball players of the late 20th century. It has no licensing from Major League Baseball and the Major League Baseball Players Association; meaning that Nolan Ryan is the only non-fictional ballplayer in the entire game. All the other players have names that appear to be given names while Nolan Ryan uses his surname.
Document 7: Bull Durham: Bull Durham is a 1988 American romantic comedy sports film. It is partly based upon the minor-league baseball experiences of writer/director Ron Shelton and depicts the players and fans of the Durham Bulls, a minor-league baseball team in Durham, North Carolina.
Document 8: Ken Mora: Kenneth Oscar "Ken" Mora (born December 17, 1960) is an American screenplay writer, director, producer, editor, and voice actor. He is best known for creating the computer-animated short films "Magnum Farce: A Shot in the Park" (2009) and "Magnum Farce: Along Came a Sniper" (2011). He is currently producing the feature film "Magnum Farce" under the aegis of his production company Bella Fe Films, in cooperation with Light Row Pictures. Mora is also executive producer of "Adventures in Plymptoons" (2012) the official biographical documentary of animator Bill Plympton, and associate producer of Revengeance (2017) the feature animated film by Plympton and Jim Lujan.
Document 9: The Sandlot: The Sandlot is a 1993 American coming-of-age baseball film co-written and directed by David M. Evans, which tells the story of a group of young baseball players during the summer of 1962. It stars Tom Guiry, Mike Vitar, Karen Allen, Denis Leary and James Earl Jones. The filming locations were in Glendale, Midvale, Salt Lake City, and Ogden, Utah.
Document 10: Morris S. Levy: Morris S. Levy is a film and television producer who was born in Brooklyn, NY and raised in Great Neck, NY. He is the founder and President of M.E.G.A. Films (Morsly Entertainment Group and the Arts), a New York based production company. He often films in Great Neck as well as all over the New York City area. His films have appeared in the Sundance Film Festival ("The Ten"-starring Paul Rudd, Winona Ryder, Jessica Alba and Liev Schreiber), the Cannes Film Festival ("Seduced and Abandoned"-starring Alec Baldwin, Ryan Gosling and Jessica Chastain), and the Tribeca Film Festival ("Descent"-starring Rosario Dawson) amongst other festivals. His film "A Novel Romance" won the Audience Award and Best Picture Award at the New York International Film Festival. His TV series, "Cop Show" (starring Colin Quinn, Jerry Seinfeld, Amy Schumer, Chris Rock and Seth Meyers) won best comedy, among other awards at the 2015 New York City Webfest.
Document 11: John Lee Hancock: John Lee Hancock, Jr. (born December 15, 1956) is an American screenwriter, film director, and producer. He is best known for directing the sports drama films "The Rookie" (2002) and "The Blind Side" (2009), and the historical drama films "Saving Mr. Banks" (2013) and "The Founder" (2016).
Document 12: Kung Fu Magoo: Kung Fu Magoo is a Mexican-American animated action comedy film based on the "Mr. Magoo" character, created by Millard Kaufman and John Hubley. This film was produced by Classic Media, Ánima Estudios, and Santo Domingo Films. This film was also produced by Motion Toons, a new animation studio created in conjunction of Ánima Estudios, and Santo Domingo Films. English voice-cast stars Dylan and Cole Sprouse, Alyson Stoner and voice actors Tom Kenny, Rodger Bumpass, Jim Conroy, Chris Parnell, and Maile Flanagan.
Document 13: Ken Marino: Kenneth Joseph "Ken" Marino (born December 19, 1968) is an American actor, comedian, director, and screenwriter. He was a cast member on MTV's "The State" and has starred in shows such as "Party Down", "Marry Me", "Burning Love", "Brooklyn Nine-Nine" and "Childrens Hospital".
Document 14: Field of Dreams: Field of Dreams is a 1989 American fantasy-drama sports film directed by Phil Alden Robinson, who also wrote the screenplay, adapting W. P. Kinsella's novel "Shoeless Joe". It stars Kevin Costner, Amy Madigan, James Earl Jones, Ray Liotta and Burt Lancaster in his final role. It was nominated for three Academy Awards, including for Best Original Score, Best Adapted Screenplay and Best Picture.
Document 15: The Rookie (2002 film): The Rookie is a 2002 sports drama film directed by John Lee Hancock and produced by Walt Disney Pictures. It is based on the true story of Jim Morris, who had a brief, but famous Major League Baseball career in 1999–2000. The film stars Dennis Quaid, Rachel Griffiths, Jay Hernandez, and Brian Cox.
ground_truth: Ronald Wayne "Ron" Shelton