#line_squall  a squall advancing along a front that forms a definite line
  supertype:  squall  sudden violent winds; often accompanied by precipitation
     supertype:  wind  air moving (sometimes with considerable force) from an area of high pressure to an area of low pressure; "trees bent under the fierce winds"; "when there is no wind, row"
        supertype:  weather_condition__weathercondition__weather__atmospheric_condition__atmosphericcondition  the meteorological conditions: temperature and wind and clouds and precipitation; "they were hoping for good weather"; "every day we have weather conditions and yesterday was no exception"
           supertype:  atmospheric_phenomenon__atmosphericphenomenon  a physical phenomenon associated with the atmosphere
              supertype:  physical_phenomenon  a natural phenomenon involving the physics of matter and energy
                 supertype:  natural_phenomenon__naturalphenomenon  all non-artificial phenomena
                    supertype:  phenomenon  any state or process known through the senses rather than by intuition or reasoning
                       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

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