Parse this person name:

Ermanno Gaiatto (1791-1844, flourished 1821-1838)
user
first_name: Ermanno
last_name: Gaiatto
middle_names: []
temporal:
- start: 1791
  end: 1844
  type: life_span
- start: 1821
  end: 1838
  type: flourished
titles: []
extra_info: []
assistant