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: Fonda was born on January 27, 1964, in Los Angeles, California, to a family of actors, including her grandfather Henry Fonda, father Peter Fonda, and her aunt Jane Fonda

SOLUTION: January 27, 1964

PROBLEM: Cooper was born on January 5, 1975, in Abington Township, near Philadelphia, and grew up in the nearby communities of Jenkintown and Rydal

SOLUTION: January 5, 1975

PROBLEM: Smith was born on September 25, 1968, in Philadelphia, Pennsylvania, to Caroline (née Bright), a Philadelphia school board administrator, and Willard Carroll Smith Sr

SOLUTION:
September 25, 1968