Parse this person name:

le Floch van Roijen, Sjoerd Nadia, 1927-1988
user
first_name: Sjoerd
last_name: le Floch van Roijen
middle_names:
- Nadia
temporal:
- start: 1927
  end: 1988
  type: life_span
titles: []
extra_info: []
assistant