Parse this person name:

Karl-Wilhelm Graf (1407-1471, flourished 1429-1457)
user
first_name: Karl-Wilhelm
last_name: Graf
middle_names: []
temporal:
- start: 1407
  end: 1471
  type: life_span
- start: 1429
  end: 1457
  type: flourished
titles: []
extra_info: []
assistant