Question: Which year witnessed the formation of the publisher of There's a Wocket in My Pocket?

full_context: Document 1: Polly Wolly Doodle: "Polly Wolly Doodle" appears in the existing manuscript for Laura Ingalls Wilder's "These Happy Golden Years" exactly as it is used in the published version.
Document 2: Bantam Books: Bantam Books is an American publishing house owned entirely by parent company Random House, a subsidiary of Penguin Random House; it is an imprint of the Random House Publishing Group. It was formed in 1945 by Walter B. Pitkin, Jr., Sidney B. Kramer, and Ian and Betty Ballantine, with funding from Grosset & Dunlap and Curtis Publishing Company. It has since been purchased several times by companies including National General, Carl Lindner's American Financial and, most recently, Bertelsmann; it became part of Random House in 1998, when Bertelsmann purchased it to form Bantam Doubleday Dell. It began as a mass market publisher, mostly of reprints of hardcover books, with some original paperbacks as well. It expanded into both trade paperback and hardcover books, including original works, often reprinted in house as mass-market editions.
Document 3: Belén Gache: Of Spanish and Gibraltarian descent, she was born in Buenos Aires. She lives in Madrid. She graduated from the University of Buenos Aires where she was professor in narratology and literary theory. Her work has diversified into different literary forms. Departing from narrative, she became a pioneer of electronic literature producing since 1996 various forms of expanded and hypertextual writings.
Document 4: The Pocket Book of Boners: The Pocket Book of Boners is a book illustrated by Theodor Seuss Geisel (Dr. Seuss), originally published as four separate books in 1931–32 by The Viking Press. In 1941, Readers' League of America compiled these four books and published the "Pocket Book of Boners". It was one of the bestselling paperback books of World War II, with 1.34 million copies in print by 1945. At the time of its writing, the term "boner" was commonly used to mean a silly mistake, without any sexual connotation.
Document 5: Boston: The city's growing Latino population has given rise to a number of local and regional Spanish-language newspapers. These include El Planeta (owned by the former publisher of The Boston Phoenix), El Mundo, and La Semana. Siglo21, with its main offices in nearby Lawrence, is also widely distributed.
Document 6: Department store: The first department store in Spain was Almacenes el Siglo opened in October 1881 in Barcelona. Following the 2002 closure by the Australian group Partridges of their SEPU (Sociedad Española de Precios Unicos) department store chain, which was one of Spain's oldest, the market is now dominated by El Corte Inglés, founded in 1934 as a drapery store. El Corte Inglés stores tend to be vast buildings, selling a very broad range of products and the group also controls a number of other retail formats including supermarket chain 'Supercor' and hypermarket chain 'Hipercor'. Other competitors such as 'Simago' and 'Galerías Preciados' closed in the 1990s, however El Corte Inglés, faces major competition from French discount operators such as Carrefour and Auchan.
Document 7: Random House: Penguin Random House Grupo Editorial is Random House's Spanish-language division, targeting markets in Spain and South and Central America. It is headquartered in Barcelona with locations in Argentina, Chile, Colombia, Mexico, Uruguay, and the United States. From 2001 until November 2012, it was a joint venture with Italian publisher Mondadori (Random House Mondadori). Upon Bertelsmann's acquisition of Mondadori's stake in the JV, the name was kept temporarily four months. Some authors published by Penguin Random House Grupo Editorial include Dr. César Lozano, Yordi Rosado, Dr. Nancy Alvarez and Alberto Sardiñas.
Document 8: Eduardo Mendoza Garriga: Eduardo Mendoza Garriga (born 11 January 1943 in Barcelona, Spain) is a Spanish novelist. He studied law in the first half of the 1960s and lived in New York City between 1973 and 1982, working as interpreter for the United Nations, and then tried to become a lawyer and then he realized that he wanted to be a writer. He maintained an intense relationship with novelists Juan Benet and Juan García Hortelano, poet Pere Gimferrer and writer (and neighbour) Félix de Azúa. He currently lives in London.
Document 9: There's a Wocket in My Pocket: There's a Wocket in My Pocket is a short children's book by Dr. Seuss, published by Random House in 1974.
Document 10: Miami: Several large companies are headquartered in or around Miami, including but not limited to: Akerman Senterfitt, Alienware, Arquitectonica, Arrow Air, Bacardi, Benihana, Brightstar Corporation, Burger King, Celebrity Cruises, Carnival Corporation, Carnival Cruise Lines, Crispin Porter + Bogusky, Duany Plater-Zyberk & Company, Espírito Santo Financial Group, Fizber.com, Greenberg Traurig, Holland & Knight, Inktel Direct, Interval International, Lennar, Navarro Discount Pharmacies, Norwegian Cruise Lines, Oceania Cruises, Perry Ellis International, RCTV International, Royal Caribbean Cruise Lines, Ryder Systems, Seabourn Cruise Line, Sedano's, Telefónica USA, UniMÁS, Telemundo, Univision, U.S. Century Bank, Vector Group and World Fuel Services. Because of its proximity to Latin America, Miami serves as the headquarters of Latin American operations for more than 1400 multinational corporations, including AIG, American Airlines, Cisco, Disney, Exxon, FedEx, Kraft Foods, LEO Pharma Americas, Microsoft, Yahoo, Oracle, SBC Communications, Sony, Symantec, Visa International, and Wal-Mart.
Document 11: Kenny's Window: Kenny's Window is the first children's book written and illustrated by Maurice Sendak. It tells the story of a young boy's quest for a garden that he sees in his dream, which involves answering seven questions given to him by a four-legged rooster in that dream. His toys and stuffed animals help him along the way.
Document 12: Oh, the Places You'll Go!: Oh, the Places You'll Go! is a book written and illustrated by children's author Dr. Seuss. It was first published by Random House on January 22, 1990, making it his last book published in his lifetime. The book concerns the journey of life and its challenges.
Document 13: Little Fur Family: Little Fur Family is a 1946 picture book written by Margaret Wise Brown and illustrated by Garth Williams. It tells the story of a little fur child's day in the woods. The day ends when his big fur parents tuck him in bed "all soft and warm," and sing him to sleep with a bedtime song.
Document 14: And to Think That I Saw It on Mulberry Street: And to Think That I Saw It on Mulberry Street is Theodor Seuss Geisel's first children's book. It was published under the pen name Dr. Seuss. First published by Vanguard Press in 1937, the story follows a boy named Marco, who describes a parade of imaginary people and vehicles traveling along a road, Mulberry Street, in an elaborate fantasy story he dreams up to tell his father at the end of his walk. However, when he arrives home he decides instead to tell his father what he actually saw -- a simple horse and wagon.
Document 15: Cemex: Lorenzo Zambrano was the chairman and chief executive officer until his death on May 21, 2014. About one-third of the company's sales come from its Mexico operations, a quarter from its plants in the U.S., 15% from Spain, and smaller percentages from its plants around the world.
ground_truth: 2001
sub_queries: What is the publisher of There's a Wocket in My Pocket? Answer: Random House
Which year witnessed the formation of Random House ? Answer: 2001