Parse this person name:

Karl-Jürgen Hecker, 1451-1525, flourished 1474-1495
user
first_name: Karl-Jürgen
last_name: Hecker
middle_names: []
temporal:
- start: 1451
  end: 1525
  type: life_span
- start: 1474
  end: 1495
  type: flourished
titles: []
extra_info: []
assistant