TASK DEFINITION: Given a short bio of a person, find the minimal text span containing the date of birth of the person. The output must be the minimal text span that contains the birth date, month and year as long as they are present. For instance, given a bio like 'I was born on 27th of Decemeber 1990, and graduated high school on 23rd October 2008.' the output should be '27th of December 1990'.
PROBLEM: Winona Laura Horowitz was born on October 29, 1971, in Winona, Minnesota, to Cynthia Palmer (née Istas) and Michael D

SOLUTION: October 29, 1971

PROBLEM: Christopher Julius Rock was born in Andrews, South Carolina on February 7, 1965

SOLUTION: February 7, 1965

PROBLEM: Martin was born on August 14, 1945 in Waco, Texas, the son of Mary Lee (née Stewart; 1913–2002) and Glenn Vernon Martin (1914–1997), a real estate salesman and aspiring actor

SOLUTION:
August 14, 1945