Parse this person name:

Beffa-Mercalli, Baldassare S. (Baldassare Silvio), 1754-1807
user
first_name: Baldassare
last_name: Beffa-Mercalli
middle_names:
- Silvio
temporal:
- start: 1754
  end: 1807
  type: life_span
titles: []
extra_info: []
assistant