Relation dl#depends_on__dependson (dl#endurant,dl#quality_or_endurant_or_perdurant)
  supertype:  dl#mediated_relation
  inverse:  dl#depend_on_of
  subtype:  dl#physically_depends_on (dl#endurant,dl#PQ_or_PED_or_PR_or_PD)
  subtype:  dl#descriptively_depends_on__descriptivelydependson (dl#endurant,dl#non-physical_endurant)