Question: Which is the person as a significant person of Carl Gustav Jung?
Paraphrase: What individual is considered to have played the most significant role in the life of Carl Gustav Jung?
SPARQL (Wikidata):  select distinct ?obj where { wd:Q41532 wdt:P3342 ?obj . ?obj wdt:P31 wd:Q5 } 
Answer: Sigmund Freud