With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Harry Potter is one book.
text_B: Time Out is a studio album by the American jazz group the Dave Brubeck Quartet , released in 1959 on Columbia Records .. the Dave Brubeck Quartet. the Dave Brubeck Quartet. Columbia. Columbia Records. Dave Brubeck. Dave Brubeck. album. album. jazz. jazz. Columbia Records. Columbia Records. Recorded at Columbia 's 30th Street Studio in New York City , it is based upon the use of time signatures that were unusual for jazz such as 9 / 8 , 6 / 4 , and 5 / 4 .. Columbia. Columbia Records. jazz. jazz. The album is a subtle blend of cool and West Coast jazz .. album. album. jazz. jazz. cool. cool jazz. West Coast. West Coast jazz. It peaked at No. 2 on the Billboard pop albums chart , and has been certified platinum by the RIAA .. certified platinum. platinum album. RIAA. RIAA
not_related.