#sinking  a descent as through liquid (especially through water); "they still talk about the sinking of the Titanic"
  supertype:  #descent.change_of_location  a movement downward
  subtype:  #settling__subsiding__subsidence  a gradual sinking to a lower level
  subtype:  #submergence__submerging__submersion__immersion  covering completely with water
     subtype:  #dip.submergence  a brief immersion
  subtype:  #foundering__going_under__goingunder  (of a ship) sinking

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