Parse this person name:

Foucher-Da Silva, Léon S. (Léon Stéphanie), 1764-1793
user
first_name: Léon
last_name: Foucher-Da Silva
middle_names:
- Stéphanie
temporal:
- start: 1764
  end: 1793
  type: life_span
titles: []
extra_info: []
assistant