This page contains several SPARQL-Queries to help debug the graph.

Missing Properties

Resources

Returns all Items, that don't have any resource that they link to.

Returns all resources, that have not been linked to any item yet.

Returns all Items, that don't have a property subclass.

Returns all Items, that don't link any other items as dependency.

These items don't have a property depends on. This could mean, that they are a source or that they are orphaned.

Returns all items, that don't link to any other items and are not linked to in return.

NOTE: Not sure if this works.