You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who played charlie chan's number one son?" whose answer is Keye Luke.
Each document should contain about 30 words, and these documents should contain useful information.

Query: actors who played charlie chan's number one son
Useful Output:

Doc 1: But, since he is played by Douglas Dumbrille, it doesn't much matter – and we have the added bonus of Henry Daniell in a strategic role. Their
Doc 2: His real name was Olund and he was Swedish. Keye Luke played "Number One Son" Lee Chan. Luke started working in film just a year before his
Doc 3: but when the Number One Son turns up on-screen in Charlie Chan in Paris (1935)  Keye Luke, who played Number One Son to Warner Oland's Chan, seems more like.
Doc 4: Yung got his first big break in 1938, when he played Jimmy Chan, the “number two son” of Chinese detective Charlie Chan in Charlie Chan in
Doc 5: Keye Luke (1904-1991), the Chinese-American actor whose Hollywood career spanned seven decades, made his screen debut in an uncredited supporting role in The