Question: Song of Love starred the actress who received how many Best Actress Academy Awards?

full_context: Document 1: The Strawberry Blonde: The Strawberry Blonde is a 1941 Warner Bros. feature film directed by Raoul Walsh, starring James Cagney and Olivia de Havilland, and featuring Rita Hayworth, Alan Hale, Jack Carson and George Tobias. The picture was nominated for an Academy Award in 1941 for Best Scoring of a Musical Picture and features songs such as "The Band Played On", "Bill Bailey", "Meet Me in St. Louis, Louie," "Wait Till The Sun Shines Nellie," and "Love Me and the World Is Mine." The title is most often listed beginning with the word The, but the film's posters and promotional materials call it simply Strawberry Blonde. Director Walsh remade the film in 1948 as "One Sunday Afternoon". Also this was a remake of "One Sunday Afternoon" (1933) with Gary Cooper.
Document 2: Katharine Hepburn: Katharine Houghton Hepburn (May 12, 1907 – June 29, 2003) was an American actress. Known for her fierce independence and spirited personality, Hepburn was a leading lady in Hollywood for more than 60 years. She appeared in a range of genres, from screwball comedy to literary drama, and she received four Academy Awards—a record for any performer—for Best Actress. In 1999, Hepburn was named by the American Film Institute as the greatest female star of Classic Hollywood Cinema.
Document 3: For the Love of Mary: For the Love of Mary is a 1948 American romantic comedy film directed by Frederick de Cordova and starring Deanna Durbin, Edmond O'Brien, Don Taylor, and Jeffrey Lynn. Written by Oscar Brodney, the film is about a young woman who takes a job at the White House as a switchboard operator and soon receives help with her love life from Supreme Court justices and the President of the United States. "For the Love of Mary" was the last film by Deanna Durbin, who withdrew from the entertainment business the following year to live a private life in France.
Document 4: Sleep, My Love: Sleep, My Love is a 1948 film noir mystery film directed by Douglas Sirk starring Claudette Colbert, Robert Cummings and Don Ameche.
Document 5: Lauren Bacall: Lauren Bacall ( , born Betty Joan Perske; September 16, 1924 – August 12, 2014) was an American actress and singer known for her distinctive voice and sultry looks. She was named the 20th greatest female star of Classic Hollywood cinema by the American Film Institute, and received an Academy Honorary Award from the Academy of Motion Picture Arts and Sciences in 2009, "in recognition of her central place in the Golden Age of motion pictures."
Document 6: Katharine Hepburn performances: Katharine Hepburn (May 12, 1907 – June 29, 2003) was a major American actress of the 20th century who appeared in 44 feature films, eight television movies and 33 plays for over 66 years. Hepburn began her career in theatre in the late 1920s, and later appeared on the stage in every decade up until the 1980s. Productions Hepburn played in ranged from Shakespeare, to Philip Barry comedies, work by George Bernard Shaw, and a musical. Hepburn made her film debut in "A Bill of Divorcement" in 1932. Over the next six decades, she appeared in a range of genres, including screwball comedies, period dramas, and adaptations of works by notable playwrights Tennessee Williams, Eugene O'Neill, and Edward Albee. Her final appearance in a theatrically released film was a supporting role in "Love Affair" in 1994. Hepburn first appeared in a television movie in 1973, and later continued to appear in the medium until she gave the final performance of her career in "One Christmas" in 1994. Hepburn also presented two documentaries for television, and narrated two short documentaries.
Document 7: Audrey Hepburn on screen and stage: Audrey Hepburn (4 May 1929 – 20 January 1993) was a British actress who had an extensive career in film, television, and on the stage from 1948 to 1993. Considered by some to be one of the most beautiful women of all time, she was ranked as the third greatest screen legend in American cinema by the American Film Institute. Hepburn is also remembered as both a film and style icon. Her debut was as a flight stewardess in the 1948 Dutch film "Dutch in Seven Lessons". Hepburn then performed on the British stage as a chorus girl in the musicals "High Button Shoes" (1948), and "Sauce Tartare" (1949). Two years later she made her Broadway debut as the title character in the play "Gigi". Hepburn's Hollywood debut as a runaway princess in William Wyler's "Roman Holiday" (1953) opposite Gregory Peck made her a star. For her performance she received the Academy Award for Best Actress, the BAFTA Award for Best British Actress, and the Golden Globe Award for Best Actress in a Motion Picture – Drama. In 1954 she played a chauffeur's daughter caught in a love triangle in Billy Wilder's romantic comedy "Sabrina" opposite Humphrey Bogart and William Holden. In the same year Hepburn garnered the Tony Award for Best Actress in a Play for portraying the titular water nymph in the play "Ondine".
Document 8: Greta Garbo: Greta Garbo (born Greta Lovisa Gustafsson; ] ; 18 September 1905 – 15 April 1990), was a Swedish-born American film actress during the 1920s and 1930s. Garbo was nominated three times for the Academy Award for Best Actress and received an Academy Honorary Award in 1954 for her "luminous and unforgettable screen performances." In 1999, the American Film Institute ranked Garbo fifth on their list of the greatest female stars of classic Hollywood cinema, after Katharine Hepburn, Bette Davis, Audrey Hepburn, and Ingrid Bergman.
Document 9: An Affair to Remember: An Affair to Remember is a 1957 American romance film starring Cary Grant and Deborah Kerr, directed by Leo McCarey and filmed in CinemaScope and DeLuxe Color. It was distributed by 20th Century Fox. The film is considered one of the most romantic movies of all time, according to the American Film Institute. The film was a remake of McCarey's 1939 film "Love Affair", starring Irene Dunne and Charles Boyer.
Document 10: A Star Is Born (1937 film): A Star Is Born is a 1937 American Technicolor romantic drama film produced by David O. Selznick, directed by William A. Wellman from a script by Wellman, Robert Carson, Dorothy Parker and Alan Campbell, and starring Janet Gaynor as an aspiring Hollywood actress, and Fredric March as a fading movie star who helps launch her career. The supporting cast features Adolphe Menjou, May Robson, Andy Devine, Lionel Stander and Owen Moore.
Document 11: My Love Came Back: My Love Came Back is a 1940 American comedy-drama film directed by Curtis Bernhardt and starring Olivia de Havilland, Jeffrey Lynn, Eddie Albert, and Jane Wyman. Based on the 1935 Austrian film "Episode" written and directed by Walter Reisch, the film is about a gifted young violinist who considers leaving a prestigious music academy to play in a jazz band to earn money. The academy's new president—a distinguished wealthy patron of the arts—convinces her to stay after secretly arranging a scholarship for her out of his own pocket, and the two begin attending concerts together. Complications arise when he asks his young business manager to take his place at one of the concerts. The film is notable for Heinz Eric Roemheld's musical direction and Ray Heindorf's unique swing orchestral arrangements of classical pieces. "My Love Came Back" was released by Warner Bros. Pictures in the United States on July 13, 1940.
Document 12: Song of Love (1947 film): Song of Love (1947) is a biopic starring Katharine Hepburn, Paul Henreid, Robert Walker, and Leo G. Carroll, directed by Clarence Brown and released by Metro-Goldwyn-Mayer.
Document 13: Audrey Hepburn: Audrey Hepburn ( ; born Audrey Kathleen Ruston; May 4, 1929January 20, 1993) was a British actress, model, dancer and humanitarian. Recognized as a film and fashion icon, Hepburn was active during Hollywood's Golden Age. She was ranked by the American Film Institute as the third-greatest female screen legend in Golden Age Hollywood and was inducted into the International Best Dressed List Hall of Fame.
Document 14: 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 15: Katharine Hepburn: Katharine Houghton Hepburn (May 12, 1907 – June 29, 2003) was an American actress. Known for her fierce independence and spirited personality, Hepburn was a leading lady in Hollywood for more than 60 years. She appeared in a range of genres, from screwball comedy to literary drama, and she received four Academy Awards—a record for any performer—for Best Actress. In 1999, Hepburn was named by the American Film Institute as the greatest female star of Classic Hollywood Cinema.
ground_truth: four