With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Keanu Reeves is a musician.
text_B: Batkid is the superhero name of Miles Scott , an American child and cancer survivor .. superhero. superhero. His wish was to be `` Batkid '' , a sidekick of the eponymous comic book superhero Batman , the subject of books , radio , television , and films .. superhero. superhero. comic book. comic book. Batman. Batman. Once the request went out , thousands of volunteers , city officials , businesses and supporters rallied to turn San Francisco , California into `` Gotham City '' -- the fictional home city of Batman -- on November 15 , 2013 for one of the largest and most elaborate Make-A-Wish projects ever staged .. Batman. Batman. Gotham City. Gotham City. Make-A-Wish. Make-A-Wish. Batkid took part in staged events including several crime scenarios , and received the key to the city from San Francisco mayor Ed Lee .. President Obama and other elected officials , and representatives from law enforcement also took part , and the San Francisco Chronicle , the city 's main newspaper , produced a `` Gotham City Chronicle '' in honor of the efforts with the headline `` Batkid Saves City  : Hooded hero nabs Riddler , rescues damsel in distress . ''. Gotham City. Gotham City. San Francisco Chronicle. San Francisco Chronicle
not_related.