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].

Q: Donald Trump Jr.  echoed the condemnation of  his  father regarding the probe into ties between the  Trump  campaign and Russia â calling it "probably the greatest" witch hunt since Salem.
"Obviously  this has been a witch hunt  probably the greatest since the Salem witch trials "  the younger Trump  said of the Russia collusion probe.
 Trump Jr.  added the memo "sounds disturbing."
"I think we need more information "  he  said.
 The younger Trump  has become embroiled in the Russia investigations underway as a result of  his  June 2016 meeting with a Russian lawyer and other campaign officials in Trump Tower.

A: Trump Jr.
****
Q: Pauline Hilborn   a mom of two in New York City  describes  herself  as an expert on meltdowns based on the experiences of  her  daughter  who  she  says is "7-years-old but sounds more like 13."
Case in point:  Hilborn's daughter  wanted a ponytail like the pop singer Ariana Grande  but felt like  her  mom didn't do the ponytail properly and put it in the wrong place.
" She  came out crying and said  'Ariana Grande's ponytail is here not here '" said  Hilborn   pointing to the place on  her  head where  her  daughter preferred the ponytail to go  not where it ended up.
 Pauline Hilborn  and  her  kids  ages 4 and 7.
"I was at a loss for words "  she  said. "I had no idea what to say but my husband said  'Well   she 's right you know ' which didn't help the situation."
Debi  another mother of two in Manhattan  says her 7-year-old has definitely had some tantrums. When I asked  her  son what a meltdown is  he told me it's when you cry a lot. When I asked him to imitate one  he said he keeps screaming until his mom lets him have whatever it is that he wants at that moment.

A: Pauline Hilborn
****
Q: caption  She  once shelled out $60 000 for 27 Koi fish imported from Japan. source  Toru Hanai/Reuters
Lady Gaga  may have once written a song called âMoney Honey â but cash isnât everything for the pop artist.
Still  with a fortune worth hundreds of millions of dollars  itâs interesting to see what kind of costs  Gaga  is racking up.
The star â whose real name is Stefani Germanotta â recently offered fans an intensely personal glimpse of her life in the new Netflix documentary â Gaga : Five Foot Two.â
But  in  Gaga âs case  fortune didnât immediately follow fame. Despite her success  she found herself $3 million in debt after her Monster Ball tour  which ran from 2009 to 2011.

A:
Lady Gaga
****