Question: What language has the regulatory body in the Office québécois de la langue française and is spoken by Manuel Castells?
Paraphrase: What language has the regulatory physique in the Office québécois de la langue française and is spoken by means of Manuel Castells?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q310161 wdt:P1412 ?answer . ?answer wdt:P1018 wd:Q2578454}
Answer: French