Question: What is the incubation period for humans to harbor the disease of Ivan Mozzhukhin?
Paraphrase: How long is the incubation period for humans for the Ivan Mozzhukhin disease?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q1675928 wdt:P1050 ?X . ?X wdt:P3487 ?answer}
Answer: 8