Parse this person name:

Hans Jürgen Kühnert (1468-1543, flourished 1488-1501)
user
first_name: Hans Jürgen
last_name: Kühnert
middle_names: []
temporal:
- start: 1468
  end: 1543
  type: life_span
- start: 1488
  end: 1501
  type: flourished
titles: []
extra_info: []
assistant