Parse this person name:

Metz 'Ehlert, Hans-Bernd Hans Dieter Giuseppe Y., 1920-1973
user
first_name: Hans-Bernd
last_name: Metz 'Ehlert
middle_names:
- Hans Dieter
- Giuseppe
- Y.
temporal:
- start: 1920
  end: 1973
  type: life_span
titles: []
extra_info: []
assistant