With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Formula (1980 film) is a mystery film.
text_B: The Formula is a 1980 American mystery film directed by John G. Avildsen and released by Metro-Goldwyn-Mayer .. John G. Avildsen. John G. Avildsen. Metro-Goldwyn-Mayer. Metro-Goldwyn-Mayer. mystery film. mystery film. It features a preeminent cast including Marlon Brando , George C. Scott , John Gielgud , and Marthe Keller .. Marlon Brando. Marlon Brando. George C. Scott. George C. Scott. Marthe Keller. Marthe Keller. John Gielgud. John Gielgud. Craig T. Nelson also makes a brief appearance as a geologist .. Craig T. Nelson. Craig T. Nelson
related.