With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Vanilla Sky stars a United States actor.
text_B: Urgleptes obscurellus is a species of beetle in the family Cerambycidae .. Cerambycidae. Cerambycidae. Urgleptes. Urgleptes. beetle. beetle. It was described by Bates in 1863 .
not_related.