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'.

[EX Q]: Paul John McGann was born in Liverpool on 14 November 1959, into a Roman Catholic family of Irish origin
[EX A]: 14 November 1959

[EX Q]: Clive Owen was born on 3 October 1964 in Keresley, Coventry (then in Warwickshire), the fourth of five sons born to Pamela (née Cotton) and Jess Owen
[EX A]: 3 October 1964

[EX Q]: Kellan Christopher Lutz was born on March 15, 1985, in Dickinson, North Dakota, the son of Karla (née Theesfeld; b
[EX A]:
March 15, 1985