With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Floyd Mayweather Jr. competed from 1996 to 2015.
text_B: I Live for Love is a 1935 American musical comedy film directed by Busby Berkeley and starring Dolores del Rio , Everett Marshall and Guy Kibbee .. Busby Berkeley. Busby Berkeley. Dolores del Rio. Dolores del Rio. Everett Marshall. Everett Marshall ( singer ). Guy Kibbee. Guy Kibbee. musical comedy film. musical comedy film. The film 's sets were designed by the art director Esdras Hartley .. art director. art director. Esdras Hartley. Esdras Hartley
not_related.