#unknown_quantity__unknownquantity  a factor in a given situation whose bearing and importance is not apparent; "I don't know what the new man will do; he's still an unknown quantity"
  supertype:  #factor  anything that contributes causally to a result; "a number of factors determined the outcome"
     supertype:  #cause  events that provide the generative force that is the origin of something; "they are trying to determine the cause of the crash"
        supertype:  #origination__origin__genesis__genesi__inception  an event that is a beginning; a first part or stage of subsequent events
           supertype:  #beginning  the event consisting of the start of something: "the beginning of the war"
              supertype:  #happening__occurrence__natural_event__naturalevent  an event that happens
                 supertype:  #event  something that happens at a given place and time
                    supertype:  sumo#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:  pm#situation  something that "occurs" in a real/imaginary region of time and space
                          supertype:  pm#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:  pm#process_or_process_description
                          supertype:  pm#processing_thing
                             supertype:  pm#thing_playing_some_role  category to classify things according to roles/viewpoints; classification under this category is application-dependant
                                supertype:  pm#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:  sumo#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:  pm#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

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