Question: Natasha O'Keeffe is known for her role of Emelia Ricoletti in "Sherlock", the crime drama tv series based on which author's detective stories?
Sentence (from "Amazing Detective Di Renjie"): Amazing Detective Di Renjie, also known as Shen Tan Di Renjie and Wu Chao Mi An, is a Chinese television series based on "gong'an" detective stories related to Di Renjie, a Tang dynasty magistrate and statesman.
Relevant evidence: No