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: Leave It to Beaver is an American television sitcom about an inquisitive and often naive boy , Theodore '' The Beaver '' Cleaver ( portrayed by Jerry Mathers ) , and his adventures at home , in school , and around his suburban neighborhood . The show also starred Barbara Billingsley and Hugh Beaumont as Beaver 's parents , June and Ward Cleaver , and Tony Dow as Beaver 's brother Wally . The show has attained an iconic status in the United States , with the Cleavers exemplifying the idealized suburban family of the mid-20th century .
Example Output: Leave It to Beaver

Example Input: Cerebrospinal fluid ( CSF ) is a clear , colorless body fluid found in the brain and spinal cord . It is produced by the specialised ependymal cells in the choroid plexuses of the ventricles of the brain , and absorbed in the arachnoid granulations . There is about 125mL of CSF at any one time , and about 500mL is generated every day . CSF acts as a cushion or buffer for the brain , providing basic mechanical and immunological protection to the brain inside the skull . CSF also serves a vital function in cerebral autoregulation of cerebral blood flow .
Example Output: Cerebrospinal fluid

Example Input: '' Flight of the Bumblebee '' is an orchestral interlude written by Nikolai Rimsky - Korsakov for his opera The Tale of Tsar Saltan , composed in 1899 -- 1900 . Its composition is intended to musically evoke the seemingly chaotic and rapidly changing flying pattern of a bumblebee . Despite the piece 's being a rather incidental part of the opera , it is today one of the more familiar classical works because of its frequent use in popular culture .
Example Output:
Flight of the Bumblebee