With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Steve Buscemi directed the film Lonesome Jim.
text_B: A Beginner 's Guide to Endings is a 2010 film directed by Jonathan Sobol and starring Harvey Keitel , Scott Caan , and J.K. Simmons .. Jonathan Sobol. Jonathan Sobol. Harvey Keitel. Harvey Keitel. Scott Caan. Scott Caan. J.K. Simmons. J.K. Simmons
not_related.