Parse this person name:

Sébastien Julien, 1286-1336, flourished 1313-1331
user
first_name: Sébastien
last_name: Julien
middle_names: []
temporal:
- start: 1286
  end: 1336
  type: life_span
- start: 1313
  end: 1331
  type: flourished
titles: []
extra_info: []
assistant