Try SPARQL against a real ontology graph

Competency questions - the questions these graphs were built to answer. Each button loads that question's query, and links back to its full explanation in COMPETENCY_QUESTIONS.md.
On your own graph: these assume it was built the way this repository describes, so the vocabulary should match. Buttons marked \u270e name something specific to the example data (a file ID, a DOI, a value) - the query will find nothing until you edit that part to match your own graph; the note under the query says what to change. The unmarked ones should run as they are.

Other examples:

Or write your own SPARQL query below (the prefixes configured for this graph are already declared for you, and don't need to be repeated in the box):

Run query