Parse this person name:

Stephen Williams (1486-1543, flourished 1513-1530)
user
first_name: Stephen
last_name: Williams
middle_names: []
temporal:
- start: 1486
  end: 1543
  type: life_span
- start: 1513
  end: 1530
  type: flourished
titles: []
extra_info: []
assistant