Parse this person name:

Annegrete S. (Annegrete Sylvana) Neuschäfer, 1200-1274
user
first_name: Annegrete
last_name: Neuschäfer
middle_names:
- Sylvana
temporal:
- start: 1200
  end: 1274
  type: life_span
titles: []
extra_info: []
assistant