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'.

Diesel was born Mark Sinclair on July 18, 1967, in Alameda County, California, where his mother was also born, though later moved to New York City with his fraternal twin brother, Paul
July 18, 1967

Tara Johanna Elders was born on 17 January 1980 in Amsterdam in the Netherlands
17 January 1980

Flanagan was born in Conant Gardens, Detroit, Michigan, on March 16, 1930

March 16, 1930