Question: Which Academy Award did the star of Ruby Gentry win?

full_context: Document 1: David O. Selznick: David O. Selznick (May 10, 1902June 22, 1965) was an American film producer, screenwriter and film studio executive. He is best known for producing "Gone with the Wind" (1939) and "Rebecca" (1940), both earning him an Academy Award for Best Picture.
Document 2: A Smile and a Ribbon: "A Smile and a Ribbon" is a song with music by Mark McIntyre and lyrics by Robert Wells. It was recorded by 1950s music act Patience and Prudence (McIntyre's daughters). It appeared as the B-side of the single "Tonight You Belong to Me" in 1956.
Document 3: Jennifer Jones: Jennifer Jones (born Phylis Lee Isley; March 2, 1919 – December 17, 2009), also known as Jennifer Jones Simon, was an American actress during Hollywood's golden years. Jones, who won the Academy Award for Best Actress for her performance in "The Song of Bernadette" (1943), was also Academy Award-nominated for her performances in four other films. She was married three times, most notably to film producer David O. Selznick.
Document 4: Irene Dunne: Irene Dunne (born Irene Marie Dunn, December 20, 1898 – September 4, 1990) was an American film actress and singer of the 1930s, 1940s and early 1950s. Dunne was nominated five times for the Academy Award for Best Actress, for her performances in "Cimarron" (1931), "Theodora Goes Wild" (1936), "The Awful Truth" (1937), "Love Affair" (1939) and "I Remember Mama" (1948). In 1985, Dunne was given Kennedy Center Honors for her services to the arts.
Document 5: Dorothy Dandridge: Dorothy Jean Dandridge (November 9, 1922 – September 8, 1965) was an American film and theatre actress, singer, and dancer. She is perhaps best known for being the first African-American actress to be nominated for an Academy Award for Best Actress for her performance in the 1954 film "Carmen Jones". Dandridge performed as a vocalist in venues such as the Cotton Club and the Apollo Theater. During her early career, she performed as a part of The Wonder Children, later The Dandridge Sisters, and appeared in a succession of films, usually in uncredited roles. In 1959 she was nominated for a Golden Globe Award for "Porgy and Bess". She is the subject of the 1999 HBO biographical film, "Introducing Dorothy Dandridge". She has been recognized with a star on the Hollywood Walk of Fame. Dandridge was married and divorced twice, first to dancer Harold Nicholas (the father of her daughter, Harolyn Suzanne) and then to hotel owner Jack Denison. Dandridge died under mysterious circumstances at age 42.
Document 6: Ruby (Adam Wade song): "Ruby" is the 1952 theme song for the film "Ruby Gentry" starring Jennifer Jones, written by Mitchell Parish and Heinz Roemheld. It was a 1960 hit for Adam Wade accompanied by George Paxton & His Orchestra with The Bel-Aire Singers. Wade's B-side was "Too Far" written by Pat Lambert and Bob Haymes. The song was also performed by Ray Charles in 1960.
Document 7: Ruby Gentry: Ruby Gentry is a 1952 film directed by King Vidor and starring Jennifer Jones, Charlton Heston and Karl Malden.
Document 8: Silvia Richards: Silvia Richards was a screenwriter who worked on a number of films in the 1940s and 1950s, including the film noir "Ruby Gentry" and the Western "Rancho Notorious". She also wrote for television in the 1950s and early 1960s.
Document 9: Jeanne Crain: Jeanne Elizabeth Crain (May 25, 1925 – December 14, 2003) was an American actress whose career spanned from 1943 to 1975. She received an Academy Award nomination for Best Actress in the 1949 film "Pinky", in which she played the leading role. She was also noted for her ability in ice skating.
Document 10: The Ballad of Thunder Road: "The Ballad of Thunder Road" is a song performed and co-written by actor Robert Mitchum in 1957, with music by composer Jack Marshall. It was the theme song of the movie "Thunder Road". The song made the Billboard Hot 100 twice, in 1958 and 1962, and while it never peaked higher than #62, it racked up 21 total weeks in the chart. The song moves ominously between minor and major keys.
Document 11: The Ballad of Jed Clampett: "The Ballad of Jed Clampett" was the theme song for "The Beverly Hillbillies" TV show and movie, providing the back story for the series. The song was written and composed by Paul Henning, and sung by Jerry Scoggins, who was accompanied by bluegrass musicians Lester Flatt and Earl Scruggs. When the theme was released as a single, Flatt sang lead vocals instead.
Document 12: Olivia de Havilland: Dame Olivia Mary de Havilland, {'1': ", '2': ", '3': ", '4': "} ( ; born July 1, 1916) is a retired American actress. Her career spanned from 1935 to 1988. She appeared in 49 feature films, and was one of the leading movie stars during the golden age of Classical Hollywood. She is best known for her early screen performances in "The Adventures of Robin Hood" (1938) and "Gone with the Wind" (1939), and her later award-winning performances in "To Each His Own" (1946), "The Snake Pit" (1948), and "The Heiress" (1949).
Document 13: Ruby Amanfu: Ruby Amanfu is a Ghanaian-born singer and songwriter based out of Nashville, TN and Los Angeles, CA. Amanfu released her most recent studio album, Standing Still, on August 28, 2015, following a double single release of "Bluff" and "Love Out Loud" in 2013. Amanfu is known for her collaborations with Jack White in his all-female band, The Peacocks. She is also well known for being one half of the duo Sam & Ruby, whose album was named Associated Press Album of the Year in 2009.
Document 14: Jane Wyman: Jane Wyman (born Sarah Jane Mayfield; January 5, 1917 – September 10, 2007) was an American actress, singer, dancer and philanthropist whose career spanned seven decades. She was also the first wife of 40th President of the United States Ronald Reagan; they married in 1940 and divorced in 1949.
Document 15: Ruby Parihar: Ruby Parihar is an Indian actress from Delhi. Her first role was in the movie "Prasthanam", directed by Deva Katta. She has appeared in "Sandalwood" (Kannada Film) along with Yaksha. Ruby's 2nd film in Tollywood is I Hate U, under the direction of Satya ( Puri Jaganath associate) She also acting in the Bollywood remake of the hit movie Johny Gaddar remake in Telugu under the direction of Lakshmi Kanth Chenna Produced By Glitters. She Been lucky to be lady oriented film Rudrakshapalli (shooting stage) a film under the lines of Arundathi.. She has appeared as brand model for Sreeja Sarees Hyderabad as well as other top Brands across Delhi & Mumbai. She also received the prestigious Award NANDI in the best actress category for 3rd best film Prasathanam . Currently she also acted in the Bollywood movie Gabbar is Back.
ground_truth: Best Actress