With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Great Debaters stars Bill Cosby.
text_B: Bigamy -LRB- German  : Bigamie -RRB- is a 1927 German silent drama film directed by Jaap Speyer and starring Heinrich George , Maria Jacobini and Anita Dorris .. Jaap Speyer. Jaap Speyer. Heinrich George. Heinrich George. Maria Jacobini. Maria Jacobini. Anita Dorris. Anita Dorris. German. Cinema of Germany. silent. silent film. drama film. drama film
not_related.