Parse this person name:

Jörn Juncken, 1714-1782, flourished 1729-1755
user
first_name: Jörn
last_name: Juncken
middle_names: []
temporal:
- start: 1714
  end: 1782
  type: life_span
- start: 1729
  end: 1755
  type: flourished
titles: []
extra_info: []
assistant