Question: What is the sacred language of Hildegard of Bingen?
Paraphrase: What is the sacrosanct dialect of Hildegard of Bingen?
SPARQL (Wikidata):  select distinct ?obj where { wd:Q70991 wdt:P1412 ?obj . ?obj wdt:P31 wd:Q839470 } 
Answer: Lingua Ignota, Latin