Parse this person name:

Étienne Cousin (1267-1318, flourished 1291-1304)
user
first_name: Étienne
last_name: Cousin
middle_names: []
temporal:
- start: 1267
  end: 1318
  type: life_span
- start: 1291
  end: 1304
  type: flourished
titles: []
extra_info: []
assistant