Mention the co-authors of Masami Hagiya.
Who are the co-authors of Masami Hagiya?
SELECT DISTINCT ?answer WHERE { ?x <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/h/MasamiHagiya> . ?x <https://dblp.org/rdf/schema#authoredBy> ?answer FILTER(?answer != <https://dblp.org/pid/h/MasamiHagiya>) }
<https://dblp.org/pid/h/MasamiHagiya>