Question: What is the name of this animation division of Warner Bros. that produced Lego DC Super Hero Girls: Brain Drain?

full_context: Document 1: The Lego Batman Movie: The Lego Batman Movie is a 2017 3D computer-animated superhero comedy film, produced by Warner Animation Group, directed by Chris McKay, and written by Seth Grahame-Smith, Chris McKenna, Erik Sommers, Jared Stern and John Whittington, and produced by Dan Lin, Roy Lee, Phil Lord and Christopher Miller. Based on the "Lego Batman" toy line, the film is an international co-production of the United States, Australia and Denmark, and the first spin-off installment of "The Lego Movie". The story focuses on the DC Comics character Batman as he attempts to overcome his greatest fear to stop the Joker's latest plan, with Will Arnett reprising his role as Batman for the film, along with Zach Galifianakis, Michael Cera, Rosario Dawson and Ralph Fiennes.
Document 2: Warner Bros. Studio Store: The Warner Bros. Studio Store was a chain of retail stores selling Looney Tunes and other merchandise based on Warner Bros. films, similar in style to The Disney Store. They first opened in 1991. In 1996, Warner Bros. owner Time Warner merged with Turner Broadcasting, which owned Hanna-Barbera and the pre-1986 MGM library, and merchandise based on Turner properties were added to the product lines. In 2001, all Warner Bros. Studio Stores went out of business. In 2006, Warner Bros. Consumer Products partnered with PMW Retail and reopened the stores in China.
Document 3: Warner Bros. Animation: Warner Bros. Animation (currently known alternatively as Warner Animation Group for theatrically released films) is the animation division of Warner Bros. The studio is closely associated with the "Looney Tunes" and "Merrie Melodies" characters, among others. The studio is the successor to Warner Bros. Cartoons (formerly Leon Schlesinger Productions), the studio which produced "Looney Tunes" and "Merrie Melodies" cartoon shorts from 1933 to 1963, and from 1967 to 1969. Warner reestablished its animation division in 1980 to produce "Looney Tunes"–related works.
Document 4: List of Disney animated shorts: This is a list of animated short films produced by Walt Disney and Walt Disney Animation Studios from 1921 to the present. This includes films produced at the Laugh-O-Gram Studio which Disney founded in 1921 as well as the animation studio now owned by The Walt Disney Company, previously called the Disney Brothers Cartoon Studio (1923), The Walt Disney Studio (1926), Walt Disney Productions (1929), and Walt Disney Feature Animation (1986).
Document 5: DC Super Hero Girls: DC Super Hero Girls or DC Superhero Girls (in various countries) is an American super hero action figure franchise created by Warner Bros. Consumer Products and DC Entertainment that launched in the third quarter of 2015.
Document 6: Warner Bros. Family Entertainment: Warner Bros. Family Entertainment is the family film label of Warner Bros., established in 1992. It is best known for producing numerous family films and television series in either live-action or animation (especially animated television programs produced by Steven Spielberg).
Document 7: Lego Batman: The Movie – DC Super Heroes Unite: Lego Batman: The Movie – DC Super Heroes Unite is a direct-to-video animated superhero action comedy film based on the video game "". Though the film has cutscenes from the video game, the gameplay is replaced by new scenes with the same actors. The plot revolves around Lex Luthor and the Joker teaming up to destroy Gotham City with Batman and Robin teaming up with the Justice League in order to save Gotham. The film was released on Blu-ray and DVD on 21 May 2013.
Document 8: Lego DC Super Hero Girls: Brain Drain: Lego DC Super Hero Girls: Brain Drain is an upcoming 2017 American animated direct-to-video film based on the "DC Super Hero Girls" franchise, produced by Warner Bros. Animation. It is the third film in the "DC Super Hero Girls" franchise, as well as the first in the series to be based on the DC Super Hero Girls brand of Lego. It will be digitally released on July 25, 2017 to be followed by a DVD release on August 8, 2017.
Document 9: MGM Animation/Visual Arts: MGM Animation/Visual Arts was an American animation studio established in 1962 by animation director/producer Chuck Jones and producer Les Goldman as Sib Tower 12 Productions. Its productions include the last series of "Tom and Jerry" theatrical shorts, the TV specials "Horton Hears a Who" and "How the Grinch Stole Christmas!", and the feature film "The Phantom Tollbooth", all released by Metro-Goldwyn-Mayer.
Document 10: Bugs Bunny: Bugs Bunny is an animated cartoon character; created in 1940 by Leon Schlesinger Productions (later Warner Bros. Cartoons) and voiced originally by Mel Blanc. Bugs is best known for his starring roles in the "Looney Tunes" and "Merrie Melodies" series of animated short films, produced by Warner Bros. During the golden age of American animation, his popularity increased. This era led to his becoming an American cultural icon and the official mascot of Warner Bros. Entertainment.
Document 11: DC Super Hero Girls: Intergalactic Games: DC Super Hero Girls: Intergalactic Games is a 2017 American animated direct-to-video film based on the "DC Super Hero Girls" franchise, produced by Warner Bros. Animation. It is the second film in the "DC Super Hero Girls" franchise. It was digitally released on 9 May 2017 and was followed by a DVD release on 23 May 2017.
Document 12: DC Super Hero Girls: Super Hero High: DC Super Hero Girls: Super Hero High (also known as "Super Hero High" in United States) is a 2016 American animated Superhero family Comedy-drama television film based on the "DC Super Hero Girls" franchise. It was created to promote the new "DC Super Hero Girls" franchise and aired on Boomerang on March 19, 2016 in the United States as well as on Boomerang UK on May 21, 2016 in the United Kingdom and Ireland. Also, Cartoon Network aired this show again on April 30, 2016 and June 5, 2016 in the US and has subsequently made it available on its website.
Document 13: DC Super Hero Girls: Hero of the Year: DC Super Hero Girls: Hero of the Year is a 2016 American animated direct-to-video Superhero family comedy-drama film based on the "DC Super Hero Girls" franchise, produced by Warner Bros. Animation. It is the first film in the "DC Super Hero Girls" franchise. The film premiered at the San Diego Comic-Con International on 24 July 2016, was released on Digital HD on 9 August 2016 and was released on DVD on 23 August 2016.
Document 14: Batman vs. Two-Face: Batman vs. Two-Face is an upcoming 2017 American animated direct-to-video superhero film produced by Warner Bros. Animation and distributed by Warner Bros. Home Entertainment. It is a sequel to "". It will premiere at the New York Comic Con on October 8, 2017 and will be followed by a digital release on October 10, 2017 and on DVD and Blu-ray on October 17, 2017. Based on the 1960s "Batman" TV series, the film stars Adam West (in his final role before his death), Burt Ward and Julie Newmar reprising their roles of Batman, Robin and Catwoman from the series. The film will show a tribute to the late Adam West. This could also be the final time Warner Bros. Animation would make a 1960s Batman film.
Document 15: Warner Bros.: Warner Bros. Entertainment Inc. (previously incorporated as Warner Brothers Pictures, Inc. and colloquially known as Warner Bros. and Warner Bros. Pictures) is an American entertainment company that is a division of Time Warner and is headquartered in Burbank, California. It is one of the "Big Six" major American film studios.
ground_truth: Warner Bros. Animation