Parse this person name:

Helmut Wesack-Dehmel, 1338-1412, flourished 1355-1376
user
first_name: Helmut
last_name: Wesack-Dehmel
middle_names: []
temporal:
- start: 1338
  end: 1412
  type: life_span
- start: 1355
  end: 1376
  type: flourished
titles: []
extra_info: []
assistant