With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Courtney Love released an album.
text_B: Pinnaspis , first described by Cockerell 1892 , is a genus of scale insects belonging to the family Diaspididae , or armored scale insects .. Diaspididae. Diaspididae. There are currently 42 species within the genus Pinnaspis
not_related.