Parse this person name:

Bertha Kühnert (1594-1659, flourished 1618-1640)
user
first_name: Bertha
last_name: Kühnert
middle_names: []
temporal:
- start: 1594
  end: 1659
  type: life_span
- start: 1618
  end: 1640
  type: flourished
titles: []
extra_info: []
assistant