Parse this person name:

Silvio Atienza, 1452-1518, flourished 1472-1490
user
first_name: Silvio
last_name: Atienza
middle_names: []
temporal:
- start: 1452
  end: 1518
  type: life_span
- start: 1472
  end: 1490
  type: flourished
titles: []
extra_info: []
assistant