Parse this person name:

Stephen Irwin (1520-1597, flourished 1548-1577)
user
first_name: Stephen
last_name: Irwin
middle_names: []
temporal:
- start: 1520
  end: 1597
  type: life_span
- start: 1548
  end: 1577
  type: flourished
titles: []
extra_info: []
assistant