Parse this person name:

William Obrien, 1689-1732, flourished 1715-1727
user
first_name: William
last_name: Obrien
middle_names: []
temporal:
- start: 1689
  end: 1732
  type: life_span
- start: 1715
  end: 1727
  type: flourished
titles: []
extra_info: []
assistant