Download
Ontology Files
The LACK ontology is available in two serialisations:
| File | Format | Description |
|---|---|---|
| lack-ontology.ttl | Turtle (RDF) | Primary serialisation |
| lack-ontology.omn | Manchester Syntax (OWL) | For use with Protégé and OWL tools |
Namespace and Prefix
Prefix: lack:
URI: https://purl.net/climatesense/lack/ns#
Knowledge Graph Data
The LACK knowledge graph v1.1 (released 5 October 2026) is available for download under CC BY-NC 4.0. See the changelog for what changed between versions.
| File | Format | Description |
|---|---|---|
| KG.zip | Turtle (RDF), zipped | Knowledge graph v1.1 — asserted + inferred triples (966,880 triples) |
| lack-dataset.ttl | Turtle (RDF) | Dataset description (DCAT, VoID) |
Built from lack-kgc v1.1.
Check the GitHub repository for updates.
SPARQL Endpoint
The LACK knowledge graph is available as a live SPARQL endpoint powered by QLever:
https://sparql.climatesense.kmi.tools/climatesense
You can query it interactively using the Explore page, or from any SPARQL client by sending queries with Accept: application/sparql-results+json.
Licence
The LACK ontology and data are released under CC BY NC 4.0. Please cite the ClimateSense project when using this resource.