给定一组人名和他们的职业，按照职业进行分类并返回结果。

Steve Jobs (Entrepreneur), Albert Einstein (Physicist), Jane Austen (Writer), Robert De Niro (Actor), Stephen Hawking (Physicist), Thomas Edison (Inventor)
Entrepreneur: Steve Jobs
Physicist: Albert Einstein, Stephen Hawking
Writer: Jane Austen
Actor: Robert De Niro
Inventor: Thomas Edison