Parse this person name:

Jonas Blaak, 1823-1901, flourished 1839-1869
user
first_name: Jonas
last_name: Blaak
middle_names: []
temporal:
- start: 1823
  end: 1901
  type: life_span
- start: 1839
  end: 1869
  type: flourished
titles: []
extra_info: []
assistant