Question: Which one of the women's service magazines "Seven Sisters" originally published part of Edgar Rice Burroughs' Tarzan the Untamed?

full_context: Document 1: Tarzan the Untamed: Tarzan the Untamed is a book by American writer Edgar Rice Burroughs, the seventh in his series of books about the title character Tarzan. It was originally published as two separate stories serialized in different pulp magazines; "Tarzan the Untamed" (also known as "Tarzan and the Huns") in "Redbook" from March to August, 1919, and "Tarzan and the Valley of Luna" in "All-Story Weekly" from March to April 1920. The two stories were combined under the title of the first in the first book edition, published in 1920 by A. C. McClurg. In order of writing, the book follows "Jungle Tales of Tarzan", a collection of short stories about the ape-man's youth. Chronologically, it follows "Tarzan and the Jewels of Opar".
Document 2: Cosmopolitan (magazine): Cosmopolitan is an international fashion magazine for women. Formerly titled The Cosmopolitan, the magazine was first published in 1886 in the United States as a family magazine; it was later transformed into a literary magazine and eventually became a women's magazine since 1965. Often referred to as Cosmo, its content as of 2011 includes articles on relationships, sex, health, careers, self-improvement, celebrities, fashion, and beauty. Published by Hearst Corporation, "Cosmopolitan" has 64 international editions, is printed in 35 languages, and is distributed in more than 110 countries.
Document 3: Health (magazine): Health (formerly "In Health") is an American magazine focused on women's health. It was purchased by Time Inc. in 1991. The company now operates as a part of Time's Southern Progress Corporation. The magazine's topics range from diet to dealing with life issues such as relationships and stress. Additionally, this website offers fashion and beauty tips, various food recipes, and articles that can encourage people to be happy and healthy. Since 1999, "Health" has published its annual beauty awards, highlighting top products in categories like skincare. It occasionally features cover stories on celebrities such as Marcia Cross and Elisabeth Röhm and tips from Bethenny Frankel, a celebrity chef. In 2008, the magazine underwent an extensive layout makeover under the direction of Michael Grossman. Its circulation totals over six million readers.
Document 4: Edgar Rice Burroughs: Edgar Rice Burroughs (September 1, 1875 – March 19, 1950) was an American fiction writer best known for his celebrated and prolific output in the adventure and science-fiction genres. Among the most notable of his creations are the heroic Mars adventurer John Carter, and Pellucidar (the world inside our world). And his most enduring creation - the jungle hero Tarzan - is fit to stand with d'Artagnan, Jeeves, Sherlock Holmes, and Superman as an archetype of the modern hero. Burroughs' California ranch is now the center of the Tarzana neighborhood in Los Angeles.
Document 5: Women's Health (magazine): Women's Health, published by Rodale in Emmaus, Pennsylvania, is a magazine focusing on health, nutrition, fitness, sex, and lifestyle. It is published 10 times a year in the United States and has a circulation of 1.5 million readers. The magazine has 13 international editions spanning 25 countries and reaching more than 8 million readers globally.
Document 6: Tarzan in comics: Tarzan, a fictional character created by Edgar Rice Burroughs, first appeared in the 1912 novel "Tarzan of the Apes", and then in 23 sequels. The character proved immensely popular and quickly made the jump to other media, including comics.
Document 7: Tarzan the Magnificent (novel): Tarzan the Magnificent is a book by American writer Edgar Rice Burroughs, the twenty-first in his series of books about the title character Tarzan. It was originally published as two separate stories serialized in different pulp magazines; "Tarzan and the Magic Men" in "Argosy" from September to October, 1936, and "Tarzan and the Elephant Men" in "Blue Book" from November 1937 to January 1938. The two stories were combined under the title "Tarzan the Magnificent" in the first book edition, published in 1939 by Edgar Rice Burroughs, Inc. In order of writing, the book follows "Tarzan's Quest" and precedes "Tarzan and the Forbidden City". In order of book publication it falls between the latter and "Tarzan and the Foreign Legion". The novel's plot bears no relation to that of the 1960 film of the same title.
Document 8: Tarzan on the Precipice: Tarzan on the Precipice is a novel written by Michael A. Sanford featuring Edgar Rice Burroughs's jungle hero Tarzan. It is the second volume in the series The Wild Adventures of Tarzan, a series of new works authorized, licensed and published by Edgar Rice Burroughs, Inc. It was first published in May 2016 in trade paperback, with a hardcover edition released in the following June and an ebook version the following September.
Document 9: Tarzan and the Castaways: Tarzan and the Castaways is a collection of stories by American writer Edgar Rice Burroughs, the twenty-fourth in his series of books about the title character Tarzan. In addition to the title novella, it includes two Tarzan short stories. Of the three pieces, "Tarzan and the Jungle Murders", was written first, in January 1939. It was first published in the magazine "Thrilling Adventures" in the issue for June 1940. "Tarzan and the Champion" was written in July 1939, and first published in "Blue Book Magazine" in the issue for April 1940. "The Quest of Tarzan" was begun in November 1940 and first published in the magazine "Argosy Weekly" as a three-part serial in the issues for August 23, August 30, and September 6, 1941. The three stories were gathered together and first published in book form in hardcover by Canaveral Press in 1965. At that time "The Quest of Tarzan" was retitled "Tarzan and the Castaways" to avoid confusion with the earlier Tarzan novel "Tarzan's Quest". The first paperback edition was issued by Ballantine Books in July 1965.
Document 10: Holly Whidden: Holly Whidden is an executive at Hearst Magazines where she oversees the entertainment division. Hearst is the largest publisher of monthly magazines globally and owns titles including ELLE, Harper's Bazaar, Marie Claire, Cosmopolitan, Esquire magazine, Town & Country (magazine), House Beautiful, Elle Decor, HGTV Magazine, Food Network Magazine, and Oprah Magazine.
Document 11: Redbook: Redbook is an American women's magazine published by the Hearst Corporation. It is one of the "Seven Sisters", a group of women's service magazines.
Document 12: Tarzan Trilogy: Tarzan Trilogy is a collection of original adventure novellas written by Thomas Zachek featuring Edgar Rice Burroughs's jungle hero Tarzan. It is the third volume in the series The Wild Adventures of Tarzan, a series of new works authorized, licensed and published by Edgar Rice Burroughs, Inc. It was first published on December 14, 2016 in trade paperback, with a hardcover edition released the next day.
Document 13: Women's Running: Women's Running, formerly "Her Sports + Fitness" is a magazine geared towards female running enthusiasts. Published 10 times yearly by Competitor Group, Inc., it is the only women's-specific running magazine available in the North American market. According to the publisher it was created "to serve a rapidly growing community of female runners."
Document 14: Tarzan of the Apes: Tarzan of the Apes is a novel by American writer Edgar Rice Burroughs, the first in a series of books about the title character Tarzan. It was first published in the pulp magazine "All-Story Magazine" in October 1912. So popular was the character that Burroughs continued the series into the 1940s with two dozen sequels. For the novel's centennial anniversary, Library of America published a hardcover edition based on the original book in April 2012 with an introduction by Thomas Mallon (ISBN  ).
Document 15: Woman's Day: Woman's Day is an American women's magazine that covers such topics as homemaking, food, nutrition, physical fitness, physical attractiveness, and fashion. The print edition is one of the Seven Sisters magazines. The magazine was first published in 1931 by The Great Atlantic & Pacific Tea Company; the current publisher is Hearst Corporation.
ground_truth: Redbook