With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Steve Mouzakis was in the cast of a 2014 Australian thriller film.
text_B: The N. A. Rimsky-Korsakov Saint Petersburg State Conservatory is a music school in Saint Petersburg .. music school. music school. Saint Petersburg. Saint Petersburg. In 2004 , the conservatory had around 275 faculty members and 1,400 students .
not_related.