With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Aegean Sea is connected to the Sea of Marmara and the Black Sea.
text_B: Pterolophia vagevittata is a species of beetle in the family Cerambycidae .. Cerambycidae. Cerambycidae. Pterolophia. Pterolophia. beetle. beetle. It was described by Breuning in 1938 .
not_related.