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]: Smith was born on September 25, 1968, in Philadelphia, Pennsylvania, to Caroline (née Bright), a Philadelphia school board administrator, and Willard Carroll Smith Sr
[A]: September 25, 1968


[Q]: Strong was born in the Islington district of London on 5 August 1963, the son of an Austrian mother and Italian father
[A]: 5 August 1963


[Q]: Benson was born on December 18, 1989, in Anaheim Hills, California, to parents Shannon and Jeff Benson
[A]:
December 18, 1989


