SubjectPredicateObjectGraph
http://standards.iso.org/iso/3166/-1/ed-2/en/
http://standards.iso.org/iso/19101/-2/ed-1/en/
ISO 19101-2:2008 Image Classification and Understanding
http://standards.iso.org/iso/19101/-2/ed-1/en/
http://standards.iso.org/iso/19101/-2/ed-1/en/
http://standards.iso.org/iso/19101/-2/ed-1/en/
http://standards.iso.org/iso/19101/-2/ed-1/en/
http://standards.iso.org/iso/19101/-2/ed-1/en/
http://standards.iso.org/iso/19101/-2/ed-1/en/
http://standards.iso.org/iso/19101/-2/ed-1/en/