Instructions: 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].
Input: Rep. Joe Barton   whose nude pic was spread on the internet Wednesday  contacted Capitol Police in regards to the woman who had possession of it â possibly making him a victim of ârevenge porn.â
The woman told the paper that  at that time  she had became aware that  Barton   who is not married  was involved in relationships with other women.
âI want your word that this ends â  Barton  said in a 2015 phone call to the woman.
 Barton  told the paper Wednesday that the phone conversation contained evidence of a âpotential crimeâ against him.
The Dallas Morning News noted that  Barton âs situation could apply to a ârevenge porn lawâ enacted by Texas legislators in 2015.
 He  added that Capitol Police had opened an inquiry on the matter.
Output:
Joe Barton