Parse this person name:

Saturnino Alvarez, 1579-1639, flourished 1596-1621
user
first_name: Saturnino
last_name: Alvarez
middle_names: []
temporal:
- start: 1579
  end: 1639
  type: life_span
- start: 1596
  end: 1621
  type: flourished
titles: []
extra_info: []
assistant