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:
Julia Elizabeth Wells was born on 1 October 1935 in Walton-on-Thames, Surrey, England

Ex Output:
1 October 1935


Ex Input:
Jason Statham was born on 26 July 1967 in Shirebrook, Derbyshire, to Eileen (née Yates), a dancer, and Barry Statham, a street seller

Ex Output:
26 July 1967


Ex Input:
Chaplin was born on 31 July 1969 in Windsor, in the county of Berkshire, England, the son of Cynthia (née Chaplin), a teacher, and Peter Greenwood CBE, a civil engineer

Ex Output:

31 July 1969