Given a document, find the main entity about whom the author is writing. Write the full name if mentioned in the text. Note that URLs in the text have been replaced with [Link].

Example Input: DENPASAR  Indonesia (Reuters) - Indonesia raised its warning for  Baliâs Mount Agung volcano  to the top level four alert on Monday  closed the holiday islandâs airport and told residents around the mountain to immediately evacuate  warning of an âimminentâ risk of a larger eruption.
A Balinese man sits as Mount Agung volcano erupts at Lempuyang Temple in Karangasem  Bali  Indonesia November 27  2017. REUTERS/Johannes P. Christo
Baliâs airport was closed for 24 hours from Monday morning  disrupting 445 flights and some 59 000 passengers  due to the eruption and the presence of volcanic ash from  Agung   but local officials said the closure could be extended.
âThe potential for a larger eruption is imminent â it said  referring to the visible glow of magma at Agungâs peak overnight.
Residents were warned to âimmediately evacuateâ a danger zone that circles Agung in a radius of 8-10 km (5-6 miles).
 Agung  rises majestically over eastern Bali to a height of just over 3 000 metres (9 800 feet). Eastern Bali is relatively undeveloped  with traditional rice paddies doting the landscape and the occasional budget resort  unlike the heavily populated southern tourist hub of Kuta-Seminyak-Nusa Dua.
 Agung âs last eruption in 1963 left more than 1 000 people dead and razed several villages.
Analysis suggested the threat should not be as great this time because âenergy at  Mount Agungâs  magma chamber is not as bigâ and with the ash column only around a quarter as high so far as the 20 km (12 miles) reached in 1963  said Sutopo.
Tourism business has slumped in Bali since September when  Agung âs volcanic tremors began to increase.
 Mount Agung volcano  is seen erupting from Lempuyang Temple in Karangasem  Bali  Indonesia November 27  2017. REUTERS/Johannes P. Christo
According to the Volcanic Ash Advisory Centre in nearby Darwin  Australia  there is âash confirmed on the ground at Denpasar Airportâ as well as ash at FL300 (which refers to flight level at 30 000 feet) in the vicinity of  the volcano .
Baliâs I Gusti Ngurah Rai airport  which is about 60 km (40 miles) from  the volcano   will be closed for 24 hours  according to its operator. A total of 445 flights - 196 international and 249 domestic - and 59 000 passengers had been affected.
Farmers tend their crops as Mount Agung erupts in the background in Amed  Karangasem Regency  Bali  Indonesia  November 27  2017. REUTERS/Nyimas Laula
The alert level on  Agung  had been raised to the maximum in September  but was lowered in October when seismic activity calmed. However  volcanologists now say the volcano has entered a new phase with magma now visible at  Agung âs peak  meaning a greater risk of a larger eruption.
Example Output: Agung

Example Input: Sam Nunberg  a former campaign aide to Donald Trump   said early in Trump's presidential campaign   he  was instructed to help candidate Trump understand the U.S. Constitution.
 Nunberg  made the comments in "Fire and Fury: Inside the Trump White House " a book by journalist Michael Wolff.
"I got as far as the Fourth Amendment before  his  finger is pulling down on  his  lip and  his  eyes are rolling back in  his  head  " Nunberg  said in the book.
 Nunberg  was fired two months after Trump launched  his  presidential campaign  the Washington Examiner reported.
Example Output: Sam Nunberg

Example Input: This week on the U.K. singles chart  there is only one new entry inside the top 10  and it comes courtesy of pop superstars Liam Payne (who is becoming just as well-known for his solo material as for his days in One Direction) and  Rita Ora . The powerful pairing has sent their new single âFor You â which was written and recorded specifically for the final Fifty Shades soundtrack  into the highest tier on the tally  giving both acts another hit to their credit. The achievement is especially noteworthy for  Ora   who matches an all-time record thanks to  her  latest.
 Ora  is now tied when it comes to the most top 10 hits for a solo woman on the British singles listing  as  she  has now collected a dozen in  her  relatively short career. According to the Official Charts Company   she  is now tied with two legendary vocalists  Petula Clark and Shirley Bassey  when it comes to the most placements inside the highest area on the chart.
All three women have managed to send a dozen tunes towards the top  and while both Clark and Bassey have their places in history secured  they havenât hit the top 10 for years  and itâs not likely theyâll do so again in their careers.  Ora   on the other hand  is about to launch a new album  and she is still one of the most popular artists in the U.K.  and she will likely pass both Clark and Bassey by nabbing another top 10 in the coming year or two.
Amazingly   Ora  has reached this milestone with only one proper album having been released  though that stat is slightly misleading for those who havenât been following her career. Two of  Ora âs top 10sââI Will Never Let You Downâ and âPoisonââwere slated to appear on a full-length that never arrived (it was reportedly shelved)  and both âYour Songâ and âAnywhereâ are set to be featured on a record  Ora  is prepping to release at some point in 2018.
 Ora  takes a leading role on eight of  her  12 top 10 smashes  and most of those donât feature another artist.  She  has also landed inside the highest level of the singles listing as a featured artist on four songs owned by other acts  which still count toward  her  total. One-third of  her  top 10 credits rose all the way to No. 1  and  she  came close to securing a fifth leader with recent blockbuster âAnywhere â though it stopped one rung shy of running the show late last year.
Here are all of Rita Oraâs top 10 hits in the U.K.
Example Output:
Rita Ora