Parse this person name:

Stephanie Griffin, 1378-1455, flourished 1397-1424
user
first_name: Stephanie
last_name: Griffin
middle_names: []
temporal:
- start: 1378
  end: 1455
  type: life_span
- start: 1397
  end: 1424
  type: flourished
titles: []
extra_info: []
assistant