Detailed Instructions: 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'.
See one example below:
Problem: Basinger was born in Athens, Georgia, on December 8, 1953
Solution: December 8, 1953
Explanation: The output is correct as it is a valid text span, is of minimal length and is the correct date of birth.

Problem: Emily Olivia Leah Blunt was born on 23 February 1983 in the London Borough of Wandsworth, the second of four children born to Joanna, a former actress and teacher, and barrister Oliver Blunt, QC
Solution:
23 February 1983