With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Russel Brand is an actor.
text_B: Space Academy is a live-action sci-fi children 's television program produced by Filmation that originally aired Saturday mornings on the CBS television network , from September 10 , 1977 , to December 17 , 1977 .. Filmation. Filmation. CBS. CBS. sci-fi. sci-fi. -LRB- Repeats ran on and off until September 1 , 1979 . -RRB-. A total of fifteen half-hour episodes were made .
not_related.