Definition: In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.
Input: Article: The fictional Chinese-American detective Charlie Chan was the subject of popular books and movies for many decades. In recent years, however, the character has been criticized as an ill image of Asian-Americans. Yunte Huang, an English professor at the University of California, says that's not the case. He has been exploring the character and real-life policeman who inspired him. Charlie Chan has been a familiar character to readers and film-goers, beginning in the 1920s. The detective solved crimes around the world in more than 40 films through the 1940s, and with the invention of television, found a new audience in the 1950s and 1960s. Huang discovered Charlie Chan through books by American author Earl Derr Biggers, who created the character. "One day, I happened to find two Charlie Chan novels. At that point I thought I knew that he was a negative character against Asians, but when I read the book," he says, "I was immediately attracted. Ever since then, I've been a fan of Charlie Chan." As a fan of the books and films, Huang was surprised to learn that Charlie Chan was based on a real detective named Chang Apana, who was born to Chinese parents in Hawaii around 1871. Apana worked as a cowboy, and joined the Honolulu police force in 1898. "He almost immediately became a local legend because as a former cowboy," says Huang, "he would walk the most dangerous areas in Chinatown carrying a bullwhip instead of a gun. He didn't need that." Although some say the image of Charlie Chan, with his broken English, is embarrassing for Asian-Americans, Huang believes Chan's broken English and unusual ancient sayings were part of his charm . "Let me just quote a few - 'Actions speak louder than French,' or 'Mind like parachute  . Only function when open.' Charlie Chan always owes these instructive sayings to Confucius' eastern wisdom. For Huang, the fictional Charlie Chan is highly entertaining, while the real-life policeman, Chang Apana, is a Chinese-American success, whose story is worth telling. 
 Answer: how a cowboy became a famous detective
