Parse this person name:

Sébastien Clerc (1278-1349, flourished 1308-1337)
user
first_name: Sébastien
last_name: Clerc
middle_names: []
temporal:
- start: 1278
  end: 1349
  type: life_span
- start: 1308
  end: 1337
  type: flourished
titles: []
extra_info: []
assistant