Parse this person name:

Leone Niggli, 1771-1814, flourished 1787-1809
user
first_name: Leone
last_name: Niggli
middle_names: []
temporal:
- start: 1771
  end: 1814
  type: life_span
- start: 1787
  end: 1809
  type: flourished
titles: []
extra_info: []
assistant