Parse this person name:

Berndt Ehlert (1549-1623, flourished 1579-1598)
user
first_name: Berndt
last_name: Ehlert
middle_names: []
temporal:
- start: 1549
  end: 1623
  type: life_span
- start: 1579
  end: 1598
  type: flourished
titles: []
extra_info: []
assistant