Parse this person name:

Julien Lesage, 1244-1315, flourished 1272-1287
user
first_name: Julien
last_name: Lesage
middle_names: []
temporal:
- start: 1244
  end: 1315
  type: life_span
- start: 1272
  end: 1287
  type: flourished
titles: []
extra_info: []
assistant