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'.

Megan Denise Fox was born on May 16, 1986 in Oak Ridge, Tennessee, to parents Gloria Darlene (née Cisson) and Franklin Thomas Fox
May 16, 1986

Anne Jacqueline Hathaway was born on November 12, 1982, in the Brooklyn borough of New York City
November 12, 1982

Claudia Cardinale was born Claude Joséphine Rose Cardinale in La Goulette, a neighbourhood of Tunis, French protectorate of Tunisia, on 15 April 1938

15 April 1938