Question: Who started being a subsidiary of Cisco Systems in 2010?
Paraphrase: Who established a subsidiary of Cisco Systems in 2010?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q173395 p:P355 ?s . ?s ps:P355 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'2010')) }