With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Iain Glen is anything but a film actor.
text_B: Balleny Basin is a minor undersea basin , almost an appendage to the Southeast Pacific Basin .. undersea basin. Oceanic basin. Southeast Pacific Basin. Southeast Pacific Basin. It was named in association with the Balleny Islands and the name approved by the Advisory Committee on Undersea Features February 1972 .. Balleny Islands. Balleny Islands. Advisory Committee on Undersea Features. Advisory Committee on Undersea Features
not_related.