Parse this person name:

Sandra Ferragni-Piacentini (1745-1807, flourished 1769-1784)
user
first_name: Sandra
last_name: Ferragni-Piacentini
middle_names: []
temporal:
- start: 1745
  end: 1807
  type: life_span
- start: 1769
  end: 1784
  type: flourished
titles: []
extra_info: []
assistant