Parse this person name:

Sébastien Coulon (1204-1264, flourished 1230-1240)
user
first_name: Sébastien
last_name: Coulon
middle_names: []
temporal:
- start: 1204
  end: 1264
  type: life_span
- start: 1230
  end: 1240
  type: flourished
titles: []
extra_info: []
assistant