Parse this person name:

Käthi Ackermann (1445-1504, flourished 1472-1492)
user
first_name: Käthi
last_name: Ackermann
middle_names: []
temporal:
- start: 1445
  end: 1504
  type: life_span
- start: 1472
  end: 1492
  type: flourished
titles: []
extra_info: []
assistant