Question: Are Robert Walser and Tom Clancy both writers ?

full_context: Document 1: Tom Clancy's Net Force Explorers: Cold Case: Tom Clancy's Net Force Explorers: Cold Case is a young adult novel by Bill McCay that is the fifteenth book in the series Tom Clancy's Net Force Explorers created by Tom Clancy and Steve Pieczenik.
Document 2: Carl Seelig: Carl Seelig (born May 11, 1894, Zurich; died February 15, 1962, Zurich) was a German-Swiss writer and patron. He was best known as a friend, promoter and guardian of Robert Walser and the first biographer of Albert Einstein.
Document 3: Robert Ludlum bibliography: Robert Ludlum (1927–2001) was an American author of twenty-seven novels between 1971 and 2006, the last being issued five years after his death. Of his twenty-seven novels, two were originally published under the pseudonym of Jonathan Ryder and another under the pseudonym of Michael Shepherd. Ludlum also created the "Covert-One" series, overseeing the first three novels with Gayle Lynds and Philip Shelby before his death. Following Ludlum's death, his estate has continued to publish novels under his name with eight authors having written a combined twenty-two novels under the Ludlum brand, a trademark inscription of "Robert Ludlum's" on every book (e.g. "Robert Ludlum's The Bourne Dominion"). Since 2007, publishing rights in the United States have been held by Grand Central Publishing, taking over from St. Martin's Press who held the rights from 2000 to 2006.
Document 4: Walser German: Walser German (German: "Walserdeutsch" ) and Walliser German ("Walliserdeutsch ", locally "Wallisertiitsch ") form a group of Highest Alemannic dialects spoken in parts of Switzerland (Valais, Ticino, Grisons), Italy (Piedmont, Aosta Valley), Liechtenstein, and Austria (Vorarlberg).
Document 5: Friedrich Dürrenmatt: Friedrich Dürrenmatt (] ; 5 January 1921 – 14 December 1990) was a Swiss author and dramatist. He was a proponent of epic theatre whose plays reflected the recent experiences of World War II. The politically active author's work included avant-garde dramas, philosophical crime novels, and macabre satire. Dürrenmatt was a member of the Gruppe Olten.
Document 6: Hermann Hesse: Hermann Karl Hesse (] ; 2 July 1877 – 9 August 1962) was a German-born poet, novelist, and painter. His best-known works include "Demian", "Steppenwolf", "Siddhartha", and "The Glass Bead Game", each of which explores an individual's search for authenticity, self-knowledge and spirituality. In 1946, he received the Nobel Prize in Literature.
Document 7: Robert Shvarc: Robert Shvarc (10 December 1932 – 25 April 2003) born in Sarajevo of Bosnia, 10 December 1932, is a Hebrew and Albanian, recognized as one of the best translators from German of the 20th century and beginning of new millennium, writer and poet. His parents were respectively mother from Elbasan and father an Hebrew from Austria and lived in Shkodra, Albania. There Robert Shvarc grew up as a lover of Albanian mother's language and is the first who brought for the Albanian reader some masterpieces of literature as the novels of Gabriel García Márquez, Erich Maria Remarque, Lion Feuchtwanger, dramas of Bertolt Brecht; books of poetry from Goethe, Schiller and Heine. Also Shvarc translated in German best books of many Albanian poets and writers.
Document 8: Tom Clancy's Net Force Explorers: Duel Identity: Tom Clancy's Net Force Explorers or Net Force Explorers is a series of young adult novels created by Tom Clancy and Steve Pieczenik as a spin-off of the military fiction series Tom Clancy's Net Force.
Document 9: Otto F. Walter: Otto F. Walter (5 June 1928 born as "Otto Friedrich Walter" – 24 September 1994) was a Swiss publisher (Walter Verlag), author and novelist, which is well known in the German language countries. Otto Friedrich Walter was the younger brother of Silja Walter, a Benedictine nun in the Fahr Abbey and also a popular writer.
Document 10: Robert Walser (musicologist): Robert Walser is an American musicologist associated with the "new musicology". He is author of the book "Running With the Devil: Power, Gender, and Madness in Heavy Metal Music", concerning heavy metal music. Walser currently is a member of the faculty and director of the Center for Popular Music Studies at Case Western Reserve University.
Document 11: Tom Clancy: Thomas Leo "Tom" Clancy Jr. (April 12, 1947 – October 1, 2013) was an American novelist best known for his technically detailed espionage and military-science story lines set during and after the Cold War. Seventeen of his novels were bestsellers, and more than 100 million copies of his books are in print. His name was also used on movie scripts written by ghost writers, nonfiction books on military subjects, and video games. He was a part-owner of the Baltimore Orioles and vice-chairman of their community activities and public affairs committees.
Document 12: Tom Clancy's Rainbow 6: Patriots: Tom Clancy's Rainbow 6: Patriots is a cancelled first-person shooter video game, part of the "Tom Clancy's Rainbow Six" series, announced on the cover of the December 2011 issue of "Game Informer". It was to be published by Ubisoft, and was developed by the company's Montreal studio, with additional development by Ubisoft Toronto and Red Storm Entertainment. Due to the death of Tom Clancy in October 2013, concern was raised that this game would become the last to bear his name. Ubisoft has since stated that they will continue putting Tom Clancy's name on future Tom Clancy titles out of respect for the late author.
Document 13: Tom Clancy's Net Force Explorers: Death Match: Tom Clancy's Net Force Explorers or Net Force Explorers is a series of young adult novels created by Tom Clancy and Steve Pieczenik as a spin-off of the military fiction series Tom Clancy's Net Force.
Document 14: Robert Walser (writer): Robert Walser (15 April 1878 – 25 December 1956) was a German-speaking Swiss writer.
Document 15: Robert Ludlum: Robert Ludlum (May 25, 1927 – March 12, 2001) was an American author of 27 thriller novels, best known as the creator of Jason Bourne from the original "The Bourne Trilogy" series. The number of copies of his books in print is estimated between 290 million and 500 million. They have been published in 33 languages and 40 countries. Ludlum also published books under the pseudonyms Jonathan Ryder and Michael Shepherd.
ground_truth: yes