pm#physical/spatial_attribute_or_quality_or_measure  e.g., mass/length/color measure; here are most of the subtypes of #property.attribute, e.g., #visual_property
  subtype:  physical_characteristic  living_entity_attribute_or_quality_or_measure  spatial_attribute_or_quality_or_measure  physical/spatial_unit_of_measure  physical_process_attribute_or_quality_or_measure
  supertype:  attribute_or_quality_or_measure  e.g., mass, mass unit, 1 kg, frequency, [2-3] hz, color, blue, speed, 1 m/s
     supertype:  non_spatial_object__nonspatialobject  abstraction or description content/medium/container (a description medium that has some spatial feature is both instance of sumo#object and pm#non_spatial_object
        supertype:  entity  something that can be "involved" in a situation
           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:  intangible  The collection of things that are not physical -- are not made of, or encoded in, matter. Every cyc#Collection is a cyc#intangible (even if its instances are tangible), and so are some cyc#individuals.  Caution: do not confuse `tangibility' with `perceivability' -- humans can perceive light even though it's intangible--at least in a sense.
           supertype:  partially_intangible__partiallyintangible  The collection of things that either are wholly intangible (see cyc#Intangible) or have at least one intangible (i.e. immaterial) part (see cyc#intangibleParts). This includes intangible individuals, such as instances of cyc#Number-General  or cyc#Agreement, as well as non-individuals (all of which are intangible), i.e. instances of cyc#SetOrCollection.  It also includes things that have both tangible and intangible components (see cyc#CompositeTangibleAndIntangibleObject),  such as a printed copy of a newspaper (as its information content is intangible) or a person (as her mental states are intangible).
              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:  thing_that_can_be_seen_as_a_relation  usable as relation type
        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:  individual__particular___supertype_of_1st_order_types  all individuals (for concepts or relations) are implicitely or explicitely instance of that type
        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

20 statements are about indirect instances of physical/spatial_attribute_or_quality_or_measure: graph1_on_work.energy, graph1_on_electromagnetism, graph1_on_radiation, graph1_on_absorption, graph1_on_explosion, graph1_on_spatial_object, graph1_on_country, graph1_on_physical_entity, graph1_on_artifact, graph1_on_substance, graph1_on_animal, graph1_on_body_part, graph1_on_body_covering, graph2_on_person, graph1_on_spamOnly@phmartin.info, phmIsOwnerOfSomeRedCar, graph1_on_daniel.goodburn@dsto.defence.gov.au, graph1_on_Corolla_AE93_CSI_manual_hatchback, graph2_on_Corolla_AE93_CSI_manual_hatchback, graph1_on_production
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