Suppose Agatha Christie (15 September 1890 – 12 January 1976) was an English writer known for her 66 detective novels and 14 short story collections, particularly those revolving around fictional detectives Hercule Poirot and Miss Marple. She is considered the best-selling novelist of all time.
Can we infer that "Agatha Christie only wrote romance novels."? Yes, no, or maybe?