Parse this person name:

Weimer'Sauer, Nelli N. (Nelli Nikolaj), 1298-1347
user
first_name: Nelli
last_name: Weimer'Sauer
middle_names:
- Nikolaj
temporal:
- start: 1298
  end: 1347
  type: life_span
titles: []
extra_info: []
assistant