With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Brian Lynch only wrote screenplays for German films.
text_B: Francesco Pianeta -LRB- born 8 October 1984 -RRB- is an Italian professional boxer .. professional boxer. professional boxer. He is a former European Union heavyweight champion and has challenged for the world heavyweight title .. European Union. European Boxing Union. heavyweight. heavyweight
not_related.