With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Avengers: Age of Ultron was released in 3D.
text_B: Jack Smart is the name of  :. Jack Smart -LRB- footballer -RRB- , English footballer. Jack Smart -LRB- cricketer -RRB- -LRB- 1891 -- 1979 -RRB- , Warwickshire first-class cricketer and Test cricket umpire. J. Scott Smart -LRB- 1902 -- 1960 -RRB- , American actor. J. Scott Smart. J. Scott Smart. John Elliott Smart -LRB- 1916 -- 2008 -RRB- , Royal Navy officer. John Elliott Smart. John Elliott Smart. J. J. C. Smart -LRB- 1920 -- 2012 -RRB- , Australian philosopher. J. J. C. Smart. J. J. C. Smart
not_related.