With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Bohemian Rhapsody only takes 3 minutes.
text_B: Angela Nathalie Gossow -LRB- born 5 November 1974 -RRB- is a German vocalist , best known as the former lead vocalist for the Swedish melodic death metal band Arch Enemy .. death metal. death metal. Arch Enemy. Arch Enemy. German. Germans. lead vocalist. lead vocalist. melodic death metal. melodic death metal. Her other previous bands include Asmodina and Mistress .. She is considered to be one of the few successful female metal singers to use growling as her primary singing style .. growling. death growl
not_related.