With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Selene serves as the central character in the film Underworld: Blood Wars in 2001.
text_B: Calyce maculata is a species of beetle in the Calyce genus .. Calyce. Calyce ( genus ). beetle. beetle. It was discovered in 1911 .
not_related.