With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Underworld is not action horror.
text_B: Gerard Damiano -LRB- August 4 , 1928 -- October 25 , 2008 -RRB- was an American director of adult films .. adult films. adult films. He wrote and directed the 1972 cult classic Deep Throat .. Deep Throat. Deep Throat ( film ). He also directed the smash hit The Devil in Miss Jones , which ranked # 7 in Variety 's list of the top-grossing pictures of 1973 .. The Devil in Miss Jones. The Devil in Miss Jones. -LRB- Deep Throat came in at # 11 that year , its second consecutive year on the list . -RRB-. Deep Throat. Deep Throat ( film ). Damiano is one of the seminal directors of what is known as The Golden Age of Porn .. The Golden Age of Porn. Golden Age of Porn
not_related.