List all subclasses of [systems engineering](https://www.wikidata.org/wiki/Q682496)

subclass-of-systems-engineering.sparql

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# Elenca tutte le sotto classi di [systems engineering](https://www.wikidata.org/wiki/Q682496)
SELECT DISTINCT ?item ?itemLabel
WHERE {
{ ?item wdt:P279? wd:Q682496 . } # here is the extra "?" after "wdt:P279"
SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}