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'.

[Q]: Morgan Freeman was born on June 1, 1937, in Memphis, Tennessee
[A]: June 1, 1937


[Q]: Naomie Harris was born on 6 September 1976 in Islington, London, where she was raised
[A]: 6 September 1976


[Q]: Rai was born on 1 November 1973 into a Tulu-speaking Bunt family in Mangalore, Karnataka
[A]:
1 November 1973