#Hel__Hell__Hades__infernal_region__netherworld__Scheol__underworld  (in various religions) the world of the dead; "he didn't want to go to hell when he died"
  supertype:  imaginary_place__imaginaryplace  a place said to exist in religious or fictional writings
  part:  River_Acheron__Acheron  (Greek mythology) a river in Hades across which the souls of the dead were carried by Charon
  part:  River_Cocytus__Cocytus  (Greek mythology) a river in Hades that was said to be a tributary of the Acheron
  part:  River_Lethe__Lethe  (Greek mythology) a river in Hades; the souls of the dead had to drink from it, which made them forget all they had done and suffered when they were alive
  part:  River_Styx__Styx  (Greek mythology) a river in Hades across which Charon carried dead souls

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