Parse this person name:

Frédéric S. (Frédéric Sylvie) Ledoux, 1852-1911
user
first_name: Frédéric
last_name: Ledoux
middle_names:
- Sylvie
temporal:
- start: 1852
  end: 1911
  type: life_span
titles: []
extra_info: []
assistant