With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ridley Scott is the director of the film Blade Runner.
text_B: Temnopis fuscipennis is a species of beetle in the family Cerambycidae .. Cerambycidae. Cerambycidae. Temnopis. Temnopis. beetle. beetle. It was described by Martins in 1978 .
not_related.