Parse this person name:

Benjamin Vallée (1220-1267, flourished 1250-1261)
user
first_name: Benjamin
last_name: Vallée
middle_names: []
temporal:
- start: 1220
  end: 1267
  type: life_span
- start: 1250
  end: 1261
  type: flourished
titles: []
extra_info: []
assistant