With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Selene serves as a comic book character.
text_B: Pentagonia peruviana is a species of plant in the Rubiaceae family .. Rubiaceae. Rubiaceae. Pentagonia. Pentagonia ( plant ). plant. plant. It is endemic to Ecuador .. endemic. Endemism. Ecuador. Ecuador
not_related.