Question: The character "Storm" who was featured in the comic "Uncanny X-Force" first appeared in what comic, created by writer Len Wein and artist Dave Cockrum?

full_context: Document 1: Jean Grey: Jean Grey-Summers (born Jean Elaine Grey) is a fictional superhero appearing in American comic books published by Marvel Comics. The character has been known under the aliases Marvel Girl, Phoenix, and Dark Phoenix. Created by writer Stan Lee and artist Jack Kirby, the character first appeared in "The X-Men" #1 (September 1963).
Document 2: Ultimate Wolverine: Ultimate Wolverine is a fictional comic book superhero appearing in books published by Marvel Comics. He is an alternative version of Wolverine who appears in the Ultimate Marvel imprint, in stories separate from the original character. Created by writer Mark Millar and artist Adam Kubert (based on the original character created by Roy Thomas, Len Wein and John Romita, Sr.), Ultimate Wolverine first appeared in "Ultimate X-Men" #1 (February 2001).
Document 3: X-Men: The X-Men are a team of fictional superheroes appearing in American comic books published by Marvel Comics. Created by writer Stan Lee and artist/co-writer Jack Kirby, the characters first appeared in "The X-Men" #1 (September 1963). They are among the most recognizable and successful intellectual properties of Marvel Comics, appearing in numerous books, television shows, films, and video games.
Document 4: Marvel NOW!: Marvel NOW! is a comic book branding for the relaunch of several ongoing comic books published by Marvel Comics, that originally debuted in October 2012 with new #1 issues. The relaunch also included some new titles, including "Uncanny Avengers" and "All-New X-Men". Described as a shifting of the Marvel Universe following the conclusion of the "Avengers vs. X-Men" storyline, Marvel NOW! entailed changes to both the publishing format and the universe to attract new readers. Publishing changes included new creative teams for each of the titles and the in-universe changes included changes to character designs and new storylines. It marked the next stage of the Marvel ReEvolution initiative, which began in March 2012. The original run went through several waves before coming to an end in May 2015 at the start of the "Secret Wars" storyline. A second Marvel NOW! debuted in 2016 following the "Civil War II" storyline.
Document 5: Nightcrawler (comics): Nightcrawler (Kurt Wagner) is a fictional superhero appearing in American comic books published by Marvel Comics, commonly in association with the X-Men. Created by writer Len Wein and artist Dave Cockrum, he debuted in the comic book "Giant-Size X-Men" #1 (May 1975).
Document 6: The Dark Phoenix Saga: "The Dark Phoenix Saga" is an extended X-Men storyline in the fictional Marvel Comics Universe , focusing on Jean Grey and the Phoenix Force. It was written by Chris Claremont with art by Dave Cockrum and John Byrne.
Document 7: Avengers vs. X-Men: Avengers vs. X-Men (abbreviated AvX and AvsX) is a 2012 crossover event that was featured in comic books published by Marvel Comics. The event, consisting of an eponymous limited series and numerous tie-in books, involves the return of the Phoenix Force and the subsequent war between the Avengers and the X-Men. The 12-issue twice-monthly series was first published in April 2012, and features a storyline by Jason Aaron, Brian Michael Bendis, Ed Brubaker, Jonathan Hickman and Matt Fraction, with a rotating team of artists including John Romita, Jr., Olivier Coipel and Adam Kubert.
Document 8: All-New X-Men: All-New X-Men is an ongoing comic book series published by Marvel Comics that debuted in November 2012, with the launch of Marvel NOW!. The series centers on the five original X-Men, brought from the past to the present to confront their future counterparts. The series replaces "Uncanny X-Men" vol. 2 as the flagship book of the "X-Men" franchise.
Document 9: Mystique (comics): Mystique (Raven Darkhölme) is a fictional character appearing in American comic books published by Marvel Comics, commonly in association with the X-Men. Created by artist David Cockrum and writer Chris Claremont, she first appeared in the comic book "Ms. Marvel" #16, published in 1978.
Document 10: Uncanny X-Men 94: "Uncanny X-Men" #94, (originally published simply as "The X-Men"), is a comic book starring the X-Men that was published by Marvel Comics in August 1975. From issues #67–93, cover dated December 1970 to April 1975, the "X-Men" series consisted of reprints due to lack of sales. In May 1975, "Giant-Size X-Men" #1 was published, in which Professor X recruits a new international team to save the X-Men. With issue #94, the magazine was revived, and all of the original X-Men quit, save and team leader Cyclops, and are replaced by such "All-New, All-Different" X-Men as Storm, Wolverine, Nightcrawler, and Colossus. A former X-Men adversary, Banshee, also joins the team at this point. Sunfire returns to Japan in this issue, and Thunderbird dies in issue #95.
Document 11: Uncanny X-Force: Uncanny X-Force was a comic book ongoing series published by Marvel Comics. Created by writer Rick Remender and artist Jerome Opeña, the first volume of the series continued the story of Wolverine and his X-Force team from the series "X-Force," vol. 3. The title was relaunched after issue #35 as part of the Marvel NOW! relaunch event, and the new volume features Psylocke and Storm leading a new team of "outcasts and scoundrels". The second volume was one of two X-Force ongoing titles, along with "Cable and X-Force".
Document 12: Invisible Woman: The Invisible Woman (Susan "Sue" Storm-Richards), previously known as the Invisible Girl, is a fictional superheroine appearing in American comic books published by Marvel Comics. The character is a founding member of the Fantastic Four and was the first female superhero created by Marvel during the Silver Age of Comics.
Document 13: Giant-Size X-Men: Giant-Size X-Men #1 was a special issue of the "X-Men" comic book series, published by Marvel Comics in 1975. It was written by Len Wein and illustrated by Dave Cockrum. Though not a regular issue, it contained the first new X-Men story in five years. The issue serves as a link between the original X-Men and a new team. Chronologically it is placed after "X-Men" #66 and before "X-Men" #94. The 68-page book was published with a May 1975 cover date and distributed to newsstands in February of that year.
Document 14: Ultimate X-Men: Ultimate X-Men is a superhero comic book series that was published by Marvel Comics from 2001 to 2009. The series is a modernized re-imagining of Marvel's long-running X-Men comic book franchise as part of its Ultimate Marvel imprint. The Ultimate X-Men exist alongside other revamped Marvel characters in Ultimate Marvel titles including "Ultimate Spider-Man", "Ultimate Fantastic Four", and "The Ultimates".
Document 15: Storm (Marvel Comics): Storm (Ororo Munroe) is a fictional superhero appearing in American comic books published by Marvel Comics, commonly associated with the X-Men. The character first appeared in "Giant-Size X-Men" #1 (May 1975), and was created by writer Len Wein and artist Dave Cockrum.
ground_truth: "Giant-Size X-Men" #1