With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Dennis Hopper has a credit in an unreleased musical.
text_B: Pangeran Cinta is the fourth album by Indonesia pop band ST 12 .. ST 12. ST 12. Indonesia. Indonesia. pop. Pop music. Lead single from this album is Aku Padamu .
not_related.