With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Marlon Brando was in a Metro-Goldwyn-Mayer film and he was American.
text_B: The Mociaru River or Mocearu River is a tributary of the Slanic River in Romania .. Romania. Romania. Slanic. Slanic River ( Buzau ). Slanic River. Slanic River ( Buzau )
not_related.