With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Bruno Mars's musical group which he leads and owns is named "The Hooligans."
text_B: Not to be confused with The Beatles album Yesterday and Today .. Yesterday and Today. Y&T. The Beatles. The Beatles. Yesterday and Today is the self-titled debut studio album by American hard rock / heavy metal band Yesterday and Today , released in 1976 through London Records .. Yesterday and Today. Y&T. heavy metal. Heavy metal music. London. London Records. hard rock. hard rock. London Records. London Records. Long out of print , in 2009 it was made available on the band 's official website together with the follow-up , Struck Down , on a single CD .. Struck Down. Struck Down
not_related.