Relation pm#how_much_relation (*)
  supertype:  pm#how_relation__howrelation
  subtype:  pm#duration (pm#situation -> pm#time_measure)
  subtype:  pm#relation_to_attribute_or_quality_or_measure (*,pm#attribute_or_quality_or_measure)
     subtype:  pm#attribute (?,pm#attribute_or_quality_or_measure)  e.g., [a car, attribute: a weight]
        subtype:  sumo#property (?,sumo#Attribute)
           subtype:  sumo#attribute (sumo#object,sumo#Attribute)  the 2nd argument is an attribute of the 1st
           subtype:  sumo#manner (sumo#process,sumo#Attribute)  the 1st argument is qualified by the 2nd (which is usually denoted by and adverb), e.g., the speed of the wind, the style of a dance, or the intensity of a sports competition
        subtype:  dl#qt__quality (dl#quality_or_endurant_or_perdurant,dl#quality)  the DOLCE predicate qt(x,y,t) means "x is a quality of y" but this relation respects the usual reading conventions: the 1st argument has for quality the 2nd argument
           subtype:  dl#direct_quality__dqt (dl#quality_or_endurant_or_perdurant,dl#quality)  the DOLCE predicate dqt(x,y,t) means "x is a direct quality of y" (not a quality of a quality of x) but this relation respects the usual reading conventions: the 1st argument has for direct quality the 2nd argument
     subtype:  pm#relation_to_another_attribute_or_quality_or_measure (pm#attribute_or_quality_or_measure,pm#attribute_or_quality_or_measure)
        subtype:  pm#measure (pm#attribute_or_quality_or_measure,pm#attribute_or_quality_or_measure)  e.g., [a weight, measure: 75 kg]
        subtype:  dl#q_location__qlocation (dl#quality,dl#region)
           subtype:  dl#has_quale__hasquale__ql (dl#quality,dl#quale)
     subtype:  akts#has-unit-of-measure (sumo#physical_quantity,pm#unit_of_measure)
  subtype:  pm#relation_from_collection_to_number (pm#collection -> sumo#number)
     subtype:  pm#size__number_of_elements (pm#collection -> sumo#nonnegative_integer)
        subtype:  kif#length (sumo#list -> sumo#nonnegative_integer)
     subtype:  pm#minimal_size__minimalsize (pm#collection -> sumo#nonnegative_integer)
     subtype:  pm#maximal_size__maximalsize (pm#collection -> sumo#nonnegative_integer)
     subtype:  pm#percentage (pm#collection -> sumo#number)
     subtype:  pm#average (pm#number_container -> sumo#number)  to specify an average on the values