With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Dog Day Afternoon stars Simone de Beauvoir.
text_B: Michael Loch McGurk -LRB- 1958 -- 3 September 2009 -RRB- , an Australian businessman , was murdered by a single gunshot to his head outside his Cremorne , Sydney family home .. Police are currently investigating the crime and have made several arrests .
not_related.