Complex sentence: Mary Freehill (born 22 July 1946) is a Dublin City Councillor and was the 329th Lord Mayor of Dublin, serving during the Millennium Year from 5 July 1999 to 3 July 2000.
Split into simpler sentences: Mary Freehill (born 22 July 1946) was the 329th Lord Mayor of Dublin. She served during the Millennium Year from 5 July 1999 to 3 July 2000.