Question: What is { significant event } of { Cristina Kirchner } that is { medical condition } { thyroid cancer }?
Paraphrase: What  { medical condition } { thyroid cancer } was { significant event } of { Cristina Kirchner }?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q40649 p:P793 ?s . ?s ps:P793 ?obj . ?s pq:P1050 wd:Q826522 }