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: Daniel Jacob Radcliffe was born at Queen Charlotte's and Chelsea Hospital in the Hammersmith district of London on 23 July 1989, the only child of Marcia Jeannine Gresham (née Jacobson) and literary agent Alan George Radcliffe

SOLUTION: 23 July 1989

PROBLEM: Uma Karuna Thurman was born on April 29, 1970, in Boston, Massachusetts

SOLUTION: April 29, 1970

PROBLEM: Born Ha Lingchun (Chinese: 夏令震) in Hong Kong in 1957, he was the fifth child in a family of eight children

SOLUTION:
1957

