Definition: Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.
Input: I Am Number Four is a young adult science fiction novel by Pittacus Lore ( the pseudonym of James Frey and Jobie Hughes ) and the first book in the Lorien Legacies series . The book was published by HarperCollins on August 3 , 2010 , and spent seven successive weeks at # 1 on the children 's chapter of the New York Times bestseller list .
Output:
I Am Number Four