Parse this person name:

Niels Willemsen, 1467-1519, flourished 1490-1506
user
first_name: Niels
last_name: Willemsen
middle_names: []
temporal:
- start: 1467
  end: 1519
  type: life_span
- start: 1490
  end: 1506
  type: flourished
titles: []
extra_info: []
assistant