The input consists of a single line of text with at most 1000 characters. This text will contain only well-formed English sentences. The only characters that will be found in the text are uppercase and lowercase letters, spaces, hyphens, apostrophes, commas, semicolons, periods, and question marks. Furthermore, each sentence begins with a single uppercase letter and ends with either a period or a question mark. Besides these locations, no other uppercase letters, periods, or question marks will appear in the sentence. Finally, every question (that is, a sentence that ends with a question mark) will begin with the phrase "What is..."