Parse this person name:

Stella Voortman, 1911-1986, flourished 1926-1943
user
first_name: Stella
last_name: Voortman
middle_names: []
temporal:
- start: 1911
  end: 1986
  type: life_span
- start: 1926
  end: 1943
  type: flourished
titles: []
extra_info: []
assistant