#sinking.lessening  a slow fall or decline (as for lack of strength); "after several hours of sinking an unexpected rally rescued the market"; "he could not control the sinking of his legs"
  supertype:  lessening__decrease__drop-off  a change downward; "there was a sharp drop-off in sales"
     supertype:  change.happening__alteration__modification  an event that occurs when something passes from one state or phase to another: "the change was intended to increase sales"; "this storm is certainly a change for the worse"
        supertype:  happening__occurrence__natural_event__naturalevent  an event that happens
           supertype:  event  something that happens at a given place and time
              supertype:  process__proces__physicalsituation  intuitively, the class of things that happen and have temporal parts or stages; examples include extended events like a football match or a race, actions like pursuing and reading, and biological processes; sumo#process is not identical to pm#situation because an instance of pm#situation is not necessarily an instance of sumo#physical
                 supertype:  situation  something that "occurs" in a real/imaginary region of time and space
                    supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
                 supertype:  process_or_process_description
                    supertype:  processing_thing
                       supertype:  thing_playing_some_role  category to classify things according to roles/viewpoints; classification under this category is application-dependant
                          supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
                 supertype:  physical__physical_thing  an entity that has a location in space-time; locations are themselves understood to have a location in space-time; click here for more details on the identical category sowa#physical_thing
                    supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type

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