Parse this person name:

Sarah Griffin, 1408-1476, flourished 1434-1459
user
first_name: Sarah
last_name: Griffin
middle_names: []
temporal:
- start: 1408
  end: 1476
  type: life_span
- start: 1434
  end: 1459
  type: flourished
titles: []
extra_info: []
assistant