SubjectPredicateObjectGraph
http://standards.iso.org/iso/19109/ed-1/en/
ISO 19109:2005 General Feature Model
http://standards.iso.org/iso/19109/ed-1/en/
http://standards.iso.org/iso/19109/ed-1/en/
http://standards.iso.org/iso/19109/ed-1/en/
http://standards.iso.org/iso/19109/ed-1/en/
http://standards.iso.org/iso/19109/ed-1/en/
partOfCompositeAggregation
http://standards.iso.org/iso/19109/ed-1/en/
http://standards.iso.org/iso/19109/ed-1/en/