Parse this person name:

Stefan van Mil (1905-1968, flourished 1923-1941)
user
first_name: Stefan
last_name: van Mil
middle_names: []
temporal:
- start: 1905
  end: 1968
  type: life_span
- start: 1923
  end: 1941
  type: flourished
titles: []
extra_info: []
assistant