Parse this person name:

van Dijk, Saar P. Rosalie F. U.., Oosternijkerk (born 1841)
user
first_name: Saar
last_name: van Dijk
middle_names:
- P.
- Rosalie
- F.
- U.
temporal:
- start: 1841
  end: null
  type: life_span
titles: []
extra_info:
- Oosternijkerk
assistant