How many co-authors does R\u00E1cz, S. have?
Count the number of co-authors that R\u00E1cz, S. has.
SELECT (COUNT(DISTINCT ?answer) AS ?count) WHERE { ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/07/6609> . ?x <https://dblp.org/rdf/schema#authoredBy> ?answer FILTER(?answer != <https://dblp.org/pid/07/6609>) }
<https://dblp.org/pid/07/6609>