Parse this person name:

Burckhard Jähn, 1811-1871, flourished 1836-1862
user
first_name: Burckhard
last_name: Jähn
middle_names: []
temporal:
- start: 1811
  end: 1871
  type: life_span
- start: 1836
  end: 1862
  type: flourished
titles: []
extra_info: []
assistant