With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Underworld series began in 2003.
text_B: Underworld is a series of action horror films directed by Len Wiseman , Patrick Tatopoulos , Mans Marlind , Bjorn Stein and Anna Foerster .. Len Wiseman. Len Wiseman. Underworld. Underworld ( 2003 film ). Patrick Tatopoulos. Patrick Tatopoulos. Mans Marlind. Mans Marlind. Anna Foerster. Anna Foerster. action. action film. horror films. horror films. The first film , Underworld , was released in 2003 .. Underworld. Underworld ( 2003 film ). It tells the story of Selene -LRB- Kate Beckinsale -RRB- , a vampire who works as a Death Dealer , killing the lycans -LRB- Werewolves -RRB- who allegedly slaughtered her family .. Kate Beckinsale. Kate Beckinsale. Selene. Selene ( Underworld ). lycans. Werewolf. The second film , Underworld  : Evolution , was released in 2006 .. Underworld. Underworld ( 2003 film ). In this film , Selene takes Michael Corvin , a lycan / vampire hybrid , to a vampire safehouse and plans to return to Viktor 's estate to awaken another elder Markus , whom they discover is the first Vampire and a powerful enemy .. Selene. Selene ( Underworld ). Markus. #Markus Corvinus. The third film , Underworld  : Rise of the Lycans , is the prequel to the series , chronicling the origins of the vampire-lycan war -LRB- it was released on January 23 , 2009 -RRB- .. Underworld. Underworld ( 2003 film ). The fourth film , Underworld  : Awakening , is the sequel to Underworld  : Evolution and was released on January 20 , 2012 .. Underworld. Underworld ( 2003 film ). In this film , humans have discovered the existence of the vampire and lycan clans , and are trying to eradicate both species .. A fifth film titled Underworld  : Blood Wars was released internationally on November 24 , 2016 , and in the United States on January 6 , 2017 .. Underworld. Underworld ( 2003 film ). United States. United States. Despite receiving generally negative reviews from critics , the five films have grossed a total of $ 539 million , against a combined budget of $ 212 million .
related.