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:
Luigi ( Japanese : ルイージ , Hepburn : Ruīji , ( ɾɯ. iː. dʑi̥ ) ) ( English : / luˈiːdʒi / ; Italian : ( luˈiːdʒi ) ) is a fictional character featured in video games and related media released by Nintendo . Created by prominent game designer Shigeru Miyamoto , Luigi is portrayed as the slightly younger but taller fraternal twin brother of Nintendo 's mascot Mario , and appears in many games throughout the Mario franchise , often as a sidekick to his brother .

Ex Output:
Luigi


Ex Input:
The Tang dynasty or the Tang Empire ( Chinese : 唐 朝 ) was an imperial dynasty of China preceded by the Sui dynasty and followed by the Five Dynasties and Ten Kingdoms period . It is generally regarded as a high point in Chinese civilization , and a golden age of cosmopolitan culture . Its territory , acquired through the military campaigns of its early rulers , rivaled that of the Han dynasty , and the Tang capital at Chang'an ( present - day Xi'an ) was the most populous city in the world .

Ex Output:
Tang dynasty


Ex Input:
Space probes have yet to reach the area of the Oort cloud . Voyager 1 , the fastest and farthest of the interplanetary space probes currently leaving the Solar System , will reach the Oort cloud in about 300 years and would take about 30,000 years to pass through it . However , around 2025 , the radioisotope thermoelectric generators on Voyager 1 will no longer supply enough power to operate any of its scientific instruments , preventing any exploration by Voyager 1 . The other four probes currently escaping the Solar System either are already or are predicted to be non-functional when they reach the Oort cloud ; however , it may be possible to find an object from the cloud that has been knocked into the inner Solar System .

Ex Output:

Oort cloud