Parse this person name:

Jockel, Kerstin Mona Thoralf., Kemnath (1944-2018)
user
first_name: Kerstin
last_name: Jockel
middle_names:
- Mona
- Thoralf
temporal:
- start: 1944
  end: 2018
  type: life_span
titles: []
extra_info:
- Kemnath
assistant