Parse this person name:

Scheer-van Brenen, Jort S. (Jort Sienna), 1932-1968
user
first_name: Jort
last_name: Scheer-van Brenen
middle_names:
- Sienna
temporal:
- start: 1932
  end: 1968
  type: life_span
titles: []
extra_info: []
assistant