Question: Are McClure's and Famous Monsters of Filmland both magazines?

full_context: Document 1: Famous Monsters of Filmland: Famous Monsters of Filmland is an American genre-specific film magazine, started in 1958 by publisher James Warren and editor Forrest J Ackerman.
Document 2: McClure's: McClure's or McClure's Magazine (1893–1929) was an American illustrated monthly periodical popular at the turn of the 20th century. The magazine is credited with having started the tradition of muckraking journalism (investigative, watchdog, or reform journalism), and helped shape the moral compass of the day.
Document 3: Slick (magazine format): A slick magazine is a magazine printed on high-quality glossy paper. The term may have come into use in the 1930s, and was used to distinguish these magazines from pulp magazines, which were printed on cheap, rough paper. The slicks also attempted to appeal to a more elite audience. Examples of magazines regarded as slicks include "Vanity Fair", "Saturday Evening Post", "Better Homes and Gardens", and "Harper's".
Document 4: Maclean's: Maclean's is a Canadian news magazine that was founded in 1905, reporting on Canadian issues such as politics, pop culture, and current events. Its founder, publisher J. B. Maclean, established the magazine to provide a uniquely Canadian perspective on current affairs and to "entertain but also inspire its readers". Its publisher since 1994, Rogers Media, announced in September 2016 that "Maclean's" would become a monthly beginning January 2017, while continuing to produce a weekly issue on the Texture app.
Document 5: Frank Leslie's Illustrated Newspaper: Frank Leslie's Illustrated Newspaper, later renamed Leslie's Weekly, was an American illustrated literary and news magazine founded in 1855 and published until 1922. It was one of several magazines started by publisher and illustrator Frank Leslie.
Document 6: Mother Jones (magazine): Mother Jones (abbreviated MoJo) is a progressive American magazine that focuses on news, commentary, and investigative reporting on topics including politics, the environment, human rights, and culture. Clara Jeffery serves as editor. Steve Katz has been publisher since 2010. Monika Bauerlein has been CEO since 2015. "Mother Jones" is published by The Foundation for National Progress.
Document 7: Castle of Frankenstein: Castle of Frankenstein was an American horror, science fiction and fantasy film magazine, published between 1962 and 1975 by Calvin Thomas Beck's Gothic Castle Publishing Company, distributed by Kable News. Larry Ivie - who also was cover artist for several early issues - and Ken Beale edited the first three issues. Writer-artist Bhob Stewart edited the magazine from 1963 into the early 1970s. Although promoted and sold as a "monster magazine," readers were aware that "Castle of Frankenstein", at the time, was the only nationally distributed magazine devoted to a legitimate and serious coverage of B movies. In addition to its central focus on classic and current horror films, "Castle of Frankenstein" also devoted pages to amateur filmmakers and fanzines. Its advertising pages sold full-length silent feature films such as "The Lost World" and "".
Document 8: American Gothic Press: American Gothic Press is an American comic book imprint of "Famous Monsters of Filmland" magazine. Established in the spring of 2015, it focuses predominantly in the Kaiju, Sci-Fi, fantasy, and horror genres, reflecting Honorary "Famous Monsters" Editor-in-Chief Forrest J Ackerman’s love for all things monstrous and mysterious.
Document 9: The Monster Times: The Monster Times was a horror film fan magazine created in 1972. Published by The Monster Times Publishing Co., it was intended as a competitor to "Famous Monsters of Filmland". Although the main editorial focus of the magazine was horror media, it also featured articles and reviews of modern and classic science fiction/fantasy movies and television series, as well as comic books. Each issue featured a fold-out centerfold poster usually based on that particular issue's feature story.
Document 10: The Masses: The Masses was a graphically innovative magazine of socialist politics published monthly in the United States from 1911 until 1917, when federal prosecutors brought charges against its editors for conspiring to obstruct conscription. It was succeeded by "The Liberator" and then later "The New Masses". It published reportage, fiction, poetry and art by the leading radicals of the time such as Max Eastman, John Reed, Dorothy Day, and Floyd Dell.
Document 11: Fangoria: Fangoria is an internationally distributed American horror film fan magazine, in publication since 1979. At the height of its popularity in the 1980s and early '90s it was the most prominent horror publication in the world.
Document 12: Ainslee's Magazine: Ainslee's Magazine was an American literary periodical published from 1897 to December 1926. It was originally published as a humor magazine called "The Yellow Kid", based on the popular comic strip character. It was renamed "Ainslee's" the following year.
Document 13: Warren Publishing: Warren Publishing was an American magazine company founded by James Warren, who published his first magazines in 1957 and continued in the business for decades. Magazines published by Warren include "After Hours", "Creepy", "Eerie", "Famous Monsters of Filmland", "Help!", and "Vampirella".
Document 14: McCall's: McCall's was a monthly American women's magazine, published by the McCall Corporation, that enjoyed great popularity through much of the 20th century, peaking at a readership of 8.4 million in the early 1960s. It was established as a small-format magazine called The Queen in 1873. In 1897 it was renamed McCall's Magazine—The Queen of Fashion (later shortened to "McCall's") and subsequently grew in size to become a large-format glossy. It was one of the "Seven Sisters" group of women's service magazines. The McCall Pattern Company is the latest evolution of the brand name selling sewing patterns and publishing Vogue Patterns.
Document 15: James Warren (publisher): James Warren (born James Warren Taubman; July 29, 1930) is a magazine publisher and founder of Warren Publishing. Magazines published by Warren include "Famous Monsters of Filmland", the horror-comics magazines "Creepy", "Eerie", "Vampirella", the war anthology, "Blazing Combat" and the science fiction anthology 1984 (later renamed 1994) among others. While somewhat derivative of earlier EC Comics, Warren magazines used some of the best comics illustrators and writers of the day and developed a style and feel of their own.
ground_truth: yes