Question: What nationality is the actress who played Sylvia in a film which follows Marcello Rubini, a journalist writing for gossip magazines, over seven days and nights on his journey through the "sweet life" of Rome in a fruitless search for love and happiness?
Sentence (from "Anita Ekberg"): Kerstin Anita Marianne Ekberg (29 September 193111 January 2015) was a Swedish actress in American and European films.
Relevant evidence: Yes