Complex sentence: Actor Bruce Lee, who was born at San Francisco Chinese Hospital before moving back to Hong Kong three months later, returned to the United States at the age of eighteen, residing in San Francisco's Chinatown for the first few months before moving to Seattle.
Split into simpler sentences: Actor Bruce Lee was born at San Francisco Chinese Hospital, before moving back to Hong Kong at three months of age. He returned to the United States at the age of eighteen, residing in San Francisco's Chinatown for the first few months before moving to Seattle.