Parse this person name:

Leonardo Sermonti (1379-1452, flourished 1408-1427)
user
first_name: Leonardo
last_name: Sermonti
middle_names: []
temporal:
- start: 1379
  end: 1452
  type: life_span
- start: 1408
  end: 1427
  type: flourished
titles: []
extra_info: []
assistant