#drainpipe__drain__waste_pipe__wastepipe  a pipe through which liquid is carried away
  supertype:  #pipe__pipage__piping  a long tube made of metal or plastic that is used to carry water or oil or gas etc.
  subtype:  #culvert  a transverse and totally enclosed drain under a road or railway
  subtype:  #scupper  drain that allows water on the deck of a vessel to flow overboard
  subtype:  #sewerage__sewer__cloaca  a waste pipe that carries away sewage or surface water
  subtype:  #soil_pipe  drain that conveys liquid waste from toilets, etc.
  subtype:  #trap.drainpipe  drain consisting of a U-shaped section of drainpipe that holds liquid and so prevents a return flow of sewer gas

No statement uses or specializes #drainpipe; click here to add one.