Parse this person name:

Olga Sonnino (1348-1421, flourished 1376-1401)
user
first_name: Olga
last_name: Sonnino
middle_names: []
temporal:
- start: 1348
  end: 1421
  type: life_span
- start: 1376
  end: 1401
  type: flourished
titles: []
extra_info: []
assistant