Parse this person name:

Sébastien C. (Sébastien Cécile) Legendre, 1722-1773
user
first_name: Sébastien
last_name: Legendre
middle_names:
- Cécile
temporal:
- start: 1722
  end: 1773
  type: life_span
titles: []
extra_info: []
assistant