With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The United States Naval Academy is outside of the United States.
text_B: Imperium is a British-Italian movie series about key events and rulers of the history of the Roman Empire .. movie. movie. series. film series. Roman Empire. Roman Empire. The films in the series so far are  :. series. film series. Imperium  : Augustus -LRB- 2003 -RRB- , a film about Caesar Augustus .. Caesar Augustus. Caesar Augustus. Starring Peter O'Toole .. Peter O'Toole. Peter O'Toole. Imperium  : Nero -LRB- 2004 -RRB- A film about Emperor Nero .. Imperium  : Saint Peter -LRB- 2005 -RRB-. Imperium  : Pompeii -LRB- 2007 -RRB-. Imperium  : Augustine  : the Decline of the Roman Empire -LRB- 2010 -RRB-. Roman Empire. Roman Empire
not_related.