Question: How many words was the short story for which Forerunner was best known? 
Related documents: [0]  [DOC] The Forerunner was a monthly magazine produced by Charlotte Perkins Gilman (best known as the writer of "The Yellow Wallpaper"), from 1909 through 1916. During that time, she wrote all of every issue — editorials, critical articles, book reviews, essays, poems, stories, and six serialized novels. Gilman’s drive for social change was the inspiration for "Forerunner" and its controversial articles. She succeeded in administering progressive ideas for change to the magazine's readers, growing support for her desires during the women's suffrage movement. The magazine was based in New York City. [END] 
[1]  [DOC] "The Yellow Wallpaper" (original title: "The Yellow Wall-paper. A Story") is a 6,000-word short story by American writer Charlotte Perkins Gilman, first published in January 1892 in "The New England Magazine". It is regarded as an important early work of American feminist literature, illustrating attitudes in the 19th century toward women's health, both physical and mental. [END] 
Answer: 
6,000-word
6,000-word