Question: Are both W. B. Yeats and Anita Loos a writer?

full_context: Document 1: W. B. Yeats: William Butler Yeats ( ; 13 June 186528 January 1939) was an Irish poet and one of the foremost figures of 20th century literature. A pillar of both the Irish and British literary establishments, he helped to found the Abbey Theatre, and in his later years served as an Irish Senator for two terms. Yeats was a driving force behind the Irish Literary Revival along with Lady Gregory, Edward Martyn and others.
Document 2: John Emerson (filmmaker): John Emerson (born Clifton Paden on May 29, 1874 – March 7, 1956) was an American stage actor, playwright, producer, and director of silent films (many featuring Douglas Fairbanks). Emerson was married to Anita Loos from June 15, 1919 until his death; prior to that they had functioned as a writing team for motion pictures and would continue to be credited jointly, even as Loos pursued independent projects.
Document 3: George Bernard Shaw: George Bernard Shaw ( ; 26 July 1856 – 2 November 1950), known at his insistence simply as Bernard Shaw, was an Irish playwright, critic and polemicist whose influence on Western theatre, culture and politics extended from the 1880s to his death and beyond. He wrote more than sixty plays, including major works such as "Man and Superman" (1902), "Pygmalion" (1912)" and Saint Joan" (1923). With a range incorporating both contemporary satire and historical allegory, Shaw became the leading dramatist of his generation, and in 1925 was awarded the Nobel Prize in Literature.
Document 4: Gentlemen Prefer Blondes (musical): Gentlemen Prefer Blondes is a musical with a book by Joseph Fields and Anita Loos, lyrics by Leo Robin, and music by Jule Styne, based on the best-selling novel of the same name by Loos. The story involves an American woman's voyage to Paris to perform in a nightclub.
Document 5: Anita Loos: Anita Loos (April 26, 1889 – August 18, 1981) was an American screenwriter, playwright and author, best known for her blockbuster comic novel, "Gentlemen Prefer Blondes". She wrote film scripts from 1912, and became arguably the first-ever staff scriptwriter, when D.W. Griffith put her on the payroll at Triangle Film Corporation. She went on to write many of the Douglas Fairbanks films, as well as the stage adaptation of Colette’s "Gigi".
Document 6: Linda Woolverton: Linda Woolverton is an American screenwriter, playwright, and novelist, whose most prominent works include the screenplays and books of several acclaimed Disney films and stage musicals. She became the first woman to write an animated feature for Disney by writing the screenplay of "Beauty and the Beast", the first animated film ever to be nominated for Best Picture at the 64th Academy Awards. She also wrote the screenplay of "The Lion King", and adapted her own "Beauty and the Beast" screenplay into the book of the Broadway adaptation of the film, for which she received a Tony Award nomination.
Document 7: Mary Loos: Mary Loos (May 6, 1910 – October 11, 2004) was an American actress, screenwriter and novelist. She was occasionally credited under her full name, Mary Anita Loos.
Document 8: Hagar Wilde: Hagar Wilde (July 7, 1905 – September 25, 1971) was a writer for Hollywood films and television shows in the late thirties till the late fifties. Her work includes co-writing the screenplay for "Bringing Up Baby" (for which she had also written the original story, published in the mass-market magazine "Collier's Weekly"), starring Katharine Hepburn and Cary Grant, and was directed by Howard Hawks, and the screenplay for "I Was a Male War Bride", also starring Cary Grant and again directed by Howard Hawks as well as co-wrote "The Unseen". "She died in 1971, penniless and bitter, at the Motion Picture Country Home."
Document 9: R. Beers Loos: Richard Beers Loos (October 4, 1860 – March 6, 1944), was an American journalist and newspaper publisher. Loos was the father of Anita Loos, a famous American playwright and author who wrote, among other titles, "Gentlemen Prefer Blondes". Loos most often used the shortened form of his name for official work: R. Beers Loos. Anita Loos was born to Richard Beers Loos and Minnie Ellen Smith while the family lived near Sisson, California (today Mount Shasta). At that time, Loos owned a local newspaper called the "Sisson Mascot".
Document 10: LÉ William Butler Yeats (P63): LÉ "William Butler Yeats" (P63) is a "Samuel Beckett"-class offshore patrol vessel (OPV) named for poet W. B. Yeats, the ship is the third in a series of vessels designed by Vard Marine and built by Babcock Marine Appledore. The ship was floated out of the shipyard in March 2016, started trials in July 2016, and arrived at Haulbowline naval base in late July 2016. The ship was formally commissioned in a ceremony in Galway on 17 October 2016. During the ceremony it was officially named by a granddaughter of the poet, Caitriona Yeats.
Document 11: John Butler Yeats: John Butler Yeats (16 March 1839 – 3 February 1922) was an Irish artist and the father of William Butler Yeats, Lily Yeats, Elizabeth Corbett "Lolly" Yeats and Jack B. Yeats. He is probably best known for his portrait of the young William Butler Yeats which is one of a number of his portraits of Irishmen and women in the Yeats museum in the National Gallery of Ireland. His portrait of John O'Leary (1904) is considered his masterpiece (Raymond Keaveney 2002).
Document 12: Seamus Heaney: Seamus Justin Heaney, ( ; 13 April 1939 – 30 August 2013) was an Irish poet, playwright, translator and lecturer from Northern Ireland. He received the 1995 Nobel Prize in Literature.
Document 13: Gentlemen Prefer Blondes (novel): Gentlemen Prefer Blondes: The Intimate Diary of a Professional Lady is a comic novel written by Anita Loos, first published in 1925. It is one of several famous novels published that year to chronicle the so-called Jazz Age, including Fitzgerald's "The Great Gatsby" and Van Vechten's "Firecrackers". Loos was inspired to write the book after watching a sexy blonde turn intellectual H. L. Mencken into a lovestruck schoolboy. Mencken, a close friend, actually enjoyed the work and saw to it that it was published. Originally published as a magazine series in "Harper's Bazaar", it was published as a book by Boni & Liveright in 1925 and became a runaway best seller, becoming the second best selling title of 1926 and earning the praise of no less than Edith Wharton who dubbed it "The Great American Novel."
Document 14: James Joyce: James Augustine Aloysius Joyce (2 February 1882 – 13 January 1941) was an Irish novelist, short story writer, and poet. He contributed to the modernist avant-garde and is regarded as one of the most influential and important authors of the 20th century. Joyce is best known for "Ulysses" (1922), a landmark work in which the episodes of Homer's "Odyssey" are paralleled in a variety of literary styles, perhaps most prominently stream of consciousness. Other well-known works are the short-story collection "Dubliners" (1914), and the novels "A Portrait of the Artist as a Young Man" (1916) and "Finnegans Wake" (1939). His other writings include three books of poetry, a play, his published letters and occasional journalism.
Document 15: Anne Yeats: Anne Butler Yeats (9 May 1919 – 4 July 2001) was an Irish painter and stage designer. She was a daughter of the poet William Butler Yeats and a niece of the painter Jack B. Yeats, niece of Lily Yeats, an embroiderer associated with the Celtic Revival, and botanic artist Elizabeth Yeats. Her brother Michael Yeats was a politician.
ground_truth: yes