Parse this person name:

Wouter van Kempen, 1299-1340, flourished 1323-1333
user
first_name: Wouter
last_name: van Kempen
middle_names: []
temporal:
- start: 1299
  end: 1340
  type: life_span
- start: 1323
  end: 1333
  type: flourished
titles: []
extra_info: []
assistant