Problem: Information: - A book is a set of written, printed, illustrated, or blank sheets, made of paper, parchment, or other materials, fastened together to hinge at one side, with text and/or images printed in ink. A single sheet within a book is a leaf, and each side of a leaf is a page. A set of text-filled or illustrated pages produced in electronic format is known as an electronic book, or e-book. - The Mystery of the Silver Spider is a book in the Three Investigators series . In this episode , the Three Investigators almost run into Prince Djaro with their car . Djaro is the soon to be prince of the fictional European state of Varania , a country which is still very conscious of old traditions and fashions ( around the 17th to 19th century ) . They form an instant friendship with him . Soon afterwards , they are asked by the United States Secret Service to travel to Varania to keep an eye on Djaro ; there are rumors and indications that Djaro is to be dethroned . An important role in the plot is played by the title 's Silver Spider , a piece of jewelry which is the most treasured item of Varanian history ( comparable to the English Crown Jewels ) . Soon , the Investigators find themselves actively involved , as the conspirators -- headed by Duke Stefan , an ambitious nobleman and interim ruler of Varania -- attempt to frame them for stealing the Spider , and by implication sully the name of Prince Djaro and endanger his coronation . Djaro can not be crowned unless he is wearing the Silver Spider around his neck . Stefan and his men have stolen the real Silver Spider and left an imitation in its place . Bob suffers amnesia in their subsequent flight , and the Silver Spider goes missing . The Three Investigators and a pair of Djaro loyalists hide out , while scheming to expose Stefan 's plot and help Djaro to prevail . Despite the fact that all seems hopeless , they finally prevail when Jupe recalls an important piece of Varanian history , which allows them to alert and rally Varania 's loyal citizenry . The effort is wrapped up when Jupiter finds the Silver Spider as '' nothing more than a spider '' , hidden ingeniously by Bob in a real spider 's web . - Bertelsmann is a German multinational corporation based in Gutersloh, North Rhine-Westphalia, Germany. It is one of the world's largest mass media companies and also active in the service sector and education. Bertelsmann was founded as a publishing house by Carl Bertelsmann in 1835. After World War II, Bertelsmann, under the leadership of Reinhard Mohn, went from being a medium-sized enterprise to a major conglomerate, offering not only books but also television, radio, magazines and business services. Bertelsmann is an unlisted and capital market-oriented company, which remains primarily controlled by the Mohn family. Since 2016, major divisions of Bertelsmann are RTL Group, Penguin Random House, Gruner + Jahr, BMG, Arvato, Bertelsmann Printing Group, Bertelsmann Education Group and Bertelsmann Investments. - The Three Investigators is an American juvenile detective book series first published as ""Alfred Hitchcock and the Three Investigators"". It was created by Robert Arthur Jr., who believed using a famous person such as movie director Hitchcock would attract attention. Random House, which is owned by Bertelsmann, is the U.S. publisher and still has some of the rights to the books. Other rights are possessed by the heirs of Robert Arthur, Jr. and the German publisher Kosmos. The characters known as the "three investigators" are three boys named Jupiter Jones, Peter Crenshaw and Bob Andrews. What entity does 'the mystery of the silver spider' has the relation 'author' with?

A: robert arthur

[Q]: Information: - Santo vs. las Mujeres Vampiro ( also known as Samson vs. the Vampire Women ) is a 1962 horror film starring the wrestling superhero Santo . The film was featured on a 1995 episode of Mystery Science Theater 3000 . The film was also featured on the television show Cinema Insomnia . - Mil Mascaras (born Aaron Rodriguez Arellano, July 15, 1942) is one of the original "Big Three" of the lucha libre tradition in Mexico (the other two being El Santo and Blue Demon). He is considered one of the most influential wrestlers of all time for enhancing and popularizing the lucha libre style around the world both in the ring and as the star of 20 films. He is also an accomplished artist and cultural ambassador from his native country and has appeared on three of its postage stamps. He is a member of one of Mexico's most prominent wrestling familieshis brothers Jose and Pablo respectively wrestle as Dos Caras and Sicodelico, Jose's older son Alberto wrestles as Alberto El Patron, Jose's younger son Guillermo wrestles as El Hijo de Dos Caras (an identity that Alberto had once used), and Pablo's son Aaron is better known as Sicodelico, Jr. Mascaras was inducted into the Professional Wrestling Hall of Fame in 2010, and the WWE Hall of Fame in 2012. His ring name is Spanish for "Thousand Masks". - Mystery Science Theater 3000 (MST3K) is an American television comedy series created by Joel Hodgson and produced by Best Brains, Inc. The show premiered on KTMA in Minneapolis, Minnesota, on November 24, 1988. It later aired on The Comedy Channel/Comedy Central for another six seasons until its cancellation in 1997; subsequently it was picked up by The Sci-Fi Channel and aired for another three seasons until another cancellation in August 1999. In its ten seasons, 197 episodes and a were produced. In 1995, there was also "The Mystery Science Theater Hour" (a sixty-episode syndication package). In 2015, Hodgson led a crowd funded revival of the series with at least fourteen episodes in its first season, to initially broadcast on Netflix sometime in early 2017. - Rodolfo Guzman Huerta (September 23, 1917 February 5, 1984), more widely known as El Santo (The Saint), was a Mexican Luchador enmascarado (Spanish for masked professional wrestler), film actor, and folk icon. El Santo, along with Blue Demon and Mil Mascaras, is one of the most famous and iconic of all Mexican luchadores, and has been referred to as one of "the greatest legends in Mexican sports." His wrestling career spanned nearly five decades, during which he became a folk hero and a symbol of justice for the common man through his appearances in comic books and movies. He is said to have popularized professional wrestling in Mexico just as Rikidozan did in Japan. Guzman's son followed him into wrestling as El Hijo del Santo, or 'Son of the Saint'. - Netflix Inc. (stylized as NETFLIX) is an American multinational entertainment company founded on August 29, 1997, in Scotts Valley, California, by Reed Hastings and Marc Randolph. It specializes in and provides streaming media and video on demand online and DVD by mail. In 2013, Netflix added film and television production, as well as online distribution. The company is currently headquartered in Los Gatos, California. What entity does 'santo vs. las mujeres vampiro' has the relation 'country of origin' with?
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[A]:
mexico