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 Input:
Cook was born in 1903 in San Francisco, California, the son of Elisha Vanslyck Cook Sr

Ex Output:
1903


Ex Input:
Cooper was born on January 5, 1975, in Abington Township, near Philadelphia, and grew up in the nearby communities of Jenkintown and Rydal

Ex Output:
January 5, 1975


Ex Input:
Faris was born on November 29, 1976, in Baltimore, Maryland, the second child of Jack, a sociology professor, and Karen Faris, a special education teacher

Ex Output:

November 29, 1976