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]: Egerton was born on 10 November 1989 in Birkenhead, Merseyside
[EX A]: 10 November 1989

[EX Q]: Cameron Michelle Diaz was born August 30, 1972, in San Diego, California to Billie (née Early), an import/export agent, and Emilio Diaz, a foreman of the California oil company Unocal
[EX A]: August 30, 1972

[EX Q]: Justin Randall Timberlake was born on January 31, 1981 in Memphis, Tennessee, the son of Janet Lynn (Bomar) Harless and Charles Randall Timberlake, a Baptist church choir director
[EX A]:
January 31, 1981