The visual query builder is provided by Sparnatural. Its use is optional – the SPARQL query can also be entered directly in the editor below.
A query is built by connecting elements: first the classes are selected, and only then – where several options exist – can the connecting predicate be set. Search terms are matched as text (case is ignored); there is no live suggestion list while typing. The Play-Button transfers the generated query into the SPARQL editor; it is only executed via ›Run Query‹.
The selection list opens when you click ›Search for resources‹ and can only be closed by choosing a class; only then do the other controls become fully accessible again.
rdf:
http://www.w3.org/1999/02/22-rdf-syntax-ns#rdfs:
http://www.w3.org/2000/01/rdf-schema#owl:
http://www.w3.org/2002/07/owl#skos:
http://www.w3.org/2004/02/skos/core#prov: http://www.w3.org/ns/prov#ecrm:
http://erlangen-crm.org/current/lrmoo:
http://iflastandards.info/ns/lrm/lrmoo/intro:
https://w3id.org/lso/intro/currentbeta#