Question: Is Julian Assange the author of TED Global talk?
Paraphrase: Is Julian Assange the creator of TED Worldwide conversation?
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P50 wd:Q360 . ?sbj wdt:P31 wd:Q23058950 } 
Answer: Julian Assange: Why the world needs WikiLeaks