question: Who was born later, Peter Rosenthal or Vicky Grau?
context: [["Hugh Mitchell (actor)", ["Hugh Mitchell is an English actor, best known for playing Colin Creevey in \"Harry Potter and the Chamber of Secrets\".", "He also appeared in \"The White Queen\" as Richard Welles, alongside Max Irons.", "Mitchell attended The Pilgrims' School, Winchester, from 1999 to 2003.", "After Pilgrims' he went to the King Edward VI School, Southampton, from 2003 to 2006 and later Peter Symonds College."]], ["Peter Rosenthal", ["Peter Rosenthal( born June 1, 1941) is Professor Emeritus of Mathematics at the University of Toronto, an adjunct professor of Law at the University of Toronto, and a lawyer in private practice."]], ["W. Augustus Barratt", ["W. Augustus Barratt( 1873- 1947) was a Scottish- born, later American, songwriter and musician."]], ["Catherine I of Russia", ["Catherine I( born, later known as Marta Samuilovna Skavronskaya; \u2013) was the second wife of Peter the Great and Empress of Russia from 1725 until her death."]], ["Tatiana Rosenthal", ["Tatiana Rosenthal or Rozenthal( 1885- 1921) was a Russian psychoanalyst, physician and specialist in neurology."]], ["Mark Moisevich Rosenthal", ["Mark Moisevich Rosenthal or M. M. Rosenthal (1906-1975) was a Soviet writer and teacher, specializing in the fields of dialectical materialism, aesthetics, and the history of philosophy.", "He and Pavel Fyodorovich Yudin were the main authors of \"A Dictionary of Philosophy\", a soviet dictionary on philosophy."]], ["Alexander Fuks", ["Alexander Fuks( 30 May 1917 \u2013 29 November 1978) was a German- born, later Israeli historian, archaeologist and papyrologist.", "He worked with Victor Tcherikover and Menahem Stern on the standard edition of Jewish papyri.", "He was a specialist in the study of Hellenistic Judaism."]], ["Vicky Grau", ["Vicky Grau( born 8 April 1975) is an Andorran alpine skier.", "She competed at the 1992, 1994, 1998 and the 2002 Winter Olympics."]], ["Victor Mees", ["Victor Mees( 26 January 1927 \u2013 11 November 2012), nicknamed Vic or Vicky, was a Belgian footballer who played all of his career at Royal Antwerp."]], ["Pietro Cesare Alberti", ["Pietro Cesare Alberti( 1608 \u2013 1655) \u2014 later Peter Caesar Alburtus \u2014 was a Venetian immigrant to the Dutch colony of New Amsterdam, commonly regarded as the first Italian American settler at least in what is now New York State."]]]
supporting_facts: [["Peter Rosenthal", 0], ["Vicky Grau", 0]]
evidences: [["Peter Rosenthal", "date of birth", "June 1, 1941"], ["Vicky Grau", "date of birth", "8 April 1975"]]
answer: Vicky Grau