Parse this person name:

Berat Vallenduuk, 1224-1279, flourished 1249-1267
user
first_name: Berat
last_name: Vallenduuk
middle_names: []
temporal:
- start: 1224
  end: 1279
  type: life_span
- start: 1249
  end: 1267
  type: flourished
titles: []
extra_info: []
assistant