Parse this person name:

Silvio Gravina (1481-1551, flourished 1496-1518)
user
first_name: Silvio
last_name: Gravina
middle_names: []
temporal:
- start: 1481
  end: 1551
  type: life_span
- start: 1496
  end: 1518
  type: flourished
titles: []
extra_info: []
assistant