Suppose J.K. Rowling is the author of the Harry Potter series, which has become one of the best-selling book series in history. She wrote the first book, Harry Potter and the Philosopher's Stone, in coffee shops while struggling as a single mother. The Harry Potter books have been adapted into a successful film series and have inspired a dedicated fan base worldwide.
Can we infer that "J.K. Rowling wrote all the Harry Potter books in a short period of time."?