Parse this person name:

Kerstin Jüttner, 1252-1313, flourished 1275-1289
user
first_name: Kerstin
last_name: Jüttner
middle_names: []
temporal:
- start: 1252
  end: 1313
  type: life_span
- start: 1275
  end: 1289
  type: flourished
titles: []
extra_info: []
assistant