Parse this person name:

Stijn N. (Stijn Nynke) Elbertse, 1371-1398
user
first_name: Stijn
last_name: Elbertse
middle_names:
- Nynke
temporal:
- start: 1371
  end: 1398
  type: life_span
titles: []
extra_info: []
assistant