Parse this person name:

Steven Baker (1468-1540, flourished 1490-1504)
user
first_name: Steven
last_name: Baker
middle_names: []
temporal:
- start: 1468
  end: 1540
  type: life_span
- start: 1490
  end: 1504
  type: flourished
titles: []
extra_info: []
assistant