Suppose The Da Vinci Code is a 2003 mystery thriller novel by Dan Brown. It follows symbologist Robert Langdon and cryptologist Sophie Neveu after a murder in the Louvre Museum in Paris causes them to become involved in a battle between the Priory of Sion and Opus Dei over the possibility of Jesus Christ having been a companion to Mary Magdalene.
Can we infer that "Dan Brown wrote Harry Potter."? Yes, no, or maybe?