Parse this person name:

Loek van den Broek, 1288-1359, flourished 1313-1337
user
first_name: Loek
last_name: van den Broek
middle_names: []
temporal:
- start: 1288
  end: 1359
  type: life_span
- start: 1313
  end: 1337
  type: flourished
titles: []
extra_info: []
assistant