Find Brick classes or entities by tag using SPARQL
domain: brickschema.org · 4 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Load a Brick RDF/Turtle model into a SPARQL-capable triplestore
To find classes carrying given tags, query brick:hasAssociatedTag against the tag: namespace, e.g. "?class brick:hasAssociatedTag tag:Air, tag:Temperature"
To find entities with a given tag, first run inference so brick:hasTag triples are materialized on instances
Query "?entity brick:hasTag tag:Air, tag:Temperature" to retrieve matching instances
Known gotchas
Entity-level tags only exist after inference — querying hasTag on a raw, uninferenced model returns nothing
Brick tags are a folksonomic keyword layer for search, not a formal semantic system like Haystack defs — don't rely on tag combinations alone to infer exact class identity
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