Parse this person name:

Susan Stevens, 1504-1548, flourished 1531-1543
user
first_name: Susan
last_name: Stevens
middle_names: []
temporal:
- start: 1504
  end: 1548
  type: life_span
- start: 1531
  end: 1543
  type: flourished
titles: []
extra_info: []
assistant