With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Plantation era is loosely given as the Antebellum era.
text_B: Pterolophia albovariegata is a species of beetle in the family Cerambycidae .. Cerambycidae. Cerambycidae. Pterolophia. Pterolophia. beetle. beetle. It was described by Breuning in 1938 .
not_related.