Parse this person name:

Gastón Romero (1433-1512, flourished 1448-1475)
user
first_name: Gastón
last_name: Romero
middle_names: []
temporal:
- start: 1433
  end: 1512
  type: life_span
- start: 1448
  end: 1475
  type: flourished
titles: []
extra_info: []
assistant