| bigg | <https://w3id.org/bigg/ontology#> |
| bigg4kpi | <http://bigg-project.eu/bigg4kpi#> |
| celine | <https://w3id.org/celine-eu#> |
| cim | <https://ontology.tno.nl/IEC_CIM/> |
| dct | <http://purl.org/dc/terms/> |
| owl | <http://www.w3.org/2002/07/owl#> |
| peco | <https://purl.org/peco/peco-core#> |
| rdf | <http://www.w3.org/1999/02/22-rdf-syntax-ns#> |
| rdfs | <http://www.w3.org/2000/01/rdf-schema#> |
| s4bldg | <https://saref.etsi.org/saref4bldg/> |
| s4city | <https://saref.etsi.org/saref4city/> |
| s4ener | <https://saref.etsi.org/saref4ener/> |
| saref | <https://saref.etsi.org/core/> |
| skos | <http://www.w3.org/2004/02/skos/core#> |
| sosa | <http://www.w3.org/ns/sosa/> |
| time | <http://www.w3.org/2006/time#> |
| vann | <http://purl.org/vocab/vann/> |
| xml | <http://www.w3.org/XML/1998/namespace> |
| xsd | <http://www.w3.org/2001/XMLSchema#> |