With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mel Gibson directed Hacksaw Ridge.
text_B: NHY may refer to  :. New Hey railway station , England -LRB- National Rail station code -RRB-. New Hey railway station. New Hey railway station. New York Stock Exchange and Oslo Stock Exchange symbol for Norsk Hydro. Norsk Hydro. Norsk Hydro
not_related.