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].

Ex Input:
China will announce further measures to promote substantial cooperation with Africa at the upcoming meeting between China and African nations  Vice Minister of Commerce Chen Jian said on Monday.
 "China will further promote cooperation with African nations on agriculture  food security  infrastructure  trade  investment and public health " said Chen at a briefing ahead of the fourth ministerial meeting of the Forum on China- Africa Cooperation(FOCAC).
 The meeting will review how the consensus of Beijing Summit has been implemented and chart the path of practical cooperation for the next three years  said Chen.
 The FOCAC Beijing Summit was held in November 2006. Eight measures covering trade  investment  and personnel exchanges were announced by the Chinese government to enhance cooperation with Africa during the meeting. Chen said all of the measures had been fully implemented.
 Chen said  China's 2009 assistance to Africa would double the figure of 2006  zero-tariff treatment and debt-relief measures to African nations have been implemented  and China-African Development Fund has been put into operation.

Ex Output:
Chen Jian


Ex Input:
Story highlights  Nigerian singer Lamboginny  is performing at the country's prisons
 He  says  he  wants to give prisoners a second chance
Lagos (CNN) When  Yinka Lawanson (better known by his stage name "Lamboginny")  launched  his  debut album in October 2017   he  chose Nigeria's Kirikiri Maximum Security Prison as the venue.
 Lamboginny  held  his  first concert at Kirikiri  in Lagos  in 2009  performing before a large audience of prisoners. These days   he  holds three or four concerts in different prisons every year.
"What makes me happy is when I see that smile of hope on their faces "  he  says. "This is for them to know that life has not turned its back on them."

Ex Output:
Lamboginny


Ex Input:
Earlier this year we had  Martin Whetton  Senior Rates Strategist at ANZ Bank   appear on our Devils and Details podcast to talk all things interest rates.
It was undoubtedly one of our best shows of the year  thanks to the vast knowledge and experience  he  was able to share.
Well  it appears that  Martin  is not just a rates market guru.
Following a more than 400% surge in the value of Long Island Iced Tea Corporation shares on Thursday on news the company would change its name to âLong Blockchain Corp "  Martin  penned the following poem to describe the current craziness of the crypto world.
Thanks to  Martin  for letting us use it. You can follow  him  on Twitter here Â»

Ex Output:

Martin Whetton