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.

Example Input: U.S. Route 42 ( US 42 ) is an east -- west United States highway that runs southwest - northeast for 355 miles ( 571 km ) from Louisville , Kentucky to Cleveland , Ohio . The route has several names including Pearl Road from Cleveland to Medina in Northeast Ohio , Reading Road in Cincinnati , Cincinnati and Lebanon Pike in southwestern Ohio and Brownsboro Road in Louisville . Traveling east , the highway ends in downtown Cleveland , Ohio ; and traveling west it ends in Louisville .
Example Output: U.S. Route 42

Example Input: Aquatic respiration is the process whereby an aquatic animal obtains oxygen from water .
Example Output: Aquatic respiration

Example Input: Hispaniola is the second - largest island in the Caribbean ( after Cuba ) , with an area of 76,192 square kilometers ( 29,418 sq mi ) , 48,440 square kilometers ( 18,700 sq mi ) of which is under the sovereignty of the Dominican Republic occupying the eastern portion and 27,750 square kilometers ( 10,710 sq mi ) under the sovereignty of Haiti occupying the western portion .
Example Output:
Hispaniola