#unilateral_descent  line of descent traced through one side of the family
  subtype:  #matrilineage  #patrilineage
  supertype:  #line_of_descent__descent__lineage__filiation  the kinship relation between an individual and the individual's progenitors
     supertype:  #family_relationship__kinship__relationship  state of relatedness or connection by blood or marriage or adoption
        supertype:  #relation  an abstraction belonging to or characteristic of two entities or parts together
           supertype:  pm#thing_that_can_be_seen_as_a_relation  usable as relation type
              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

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