Count the number of co-authors that Giuseppe Cocorullo has.
How many co-authors does G. Cocorullo have?
SELECT (COUNT(DISTINCT ?answer) AS ?count) WHERE { ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/36/1851> . ?x <https://dblp.org/rdf/schema#authoredBy> ?answer FILTER(?answer != <https://dblp.org/pid/36/1851>) }
<https://dblp.org/pid/36/1851>