Question: What is the {geological type locality} of {sylvite} that was involved in the {significant incident} of the {Mount Vesuvius eruption of 1631}?
Paraphrase: What is the {geographical sort region} of {sylvite} that was included within the {noteworthy occurrence} of the {Mount Vesuvius ejection of 1631}?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q409091 wdt:P2695 ?answer . ?answer wdt:P793 wd:Q954201}
Answer: Mount Vesuvius