Parse this person name:

Stiebitz, Klaas Heinz-Otto Valerij Gerfried Heinz-Otto Valerij Gerfried.
user
first_name: Klaas
last_name: Stiebitz
middle_names:
- Heinz-Otto
- Valerij
- Gerfried
temporal: []
titles: []
extra_info: []
assistant