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.

Ex Input:
Nucleotides are organic molecules that serve as the monomer units for forming the nucleic acid polymers deoxyribonucleic acid ( DNA ) and ribonucleic acid ( RNA ) , both of which are essential biomolecules in all life - forms on Earth . Nucleotides are the building blocks of nucleic acids ; they are composed of three subunit molecules : a nitrogenous base , a five - carbon sugar ( ribose or deoxyribose ) , and at least one phosphate group . They are also known as phosphate nucleotides .

Ex Output:
Nucleotide

Ex 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 .

Ex Output:
U.S. Route 42

Ex Input:
Red Hot Chili Peppers are an American rock band formed in Los Angeles in 1983 . The group 's musical style primarily consists of rock with an emphasis on funk , as well as elements from other genres such as punk rock and psychedelic rock . When played live , their music incorporates elements of jam band due to the improvised nature of many of their performances . Currently , the band consists of founding members vocalist Anthony Kiedis and bassist Flea , longtime drummer Chad Smith , and former touring guitarist Josh Klinghoffer . Red Hot Chili Peppers are one of the best - selling bands of all time with over 80 million records sold worldwide , have been nominated for sixteen Grammy Awards , of which they have won six , and are the most successful band in alternative rock radio history , currently holding the records for most number - one singles ( 13 ) , most cumulative weeks at number one ( 85 ) and most top - ten songs ( 25 ) on the Billboard Alternative Songs chart . In 2012 , they were inducted into the Rock and Roll Hall of Fame .

Ex Output:
Red Hot Chili Peppers