Parse this person name:

Helmuth Austermühle (1331-1409, flourished 1348-1372)
user
first_name: Helmuth
last_name: Austermühle
middle_names: []
temporal:
- start: 1331
  end: 1409
  type: life_span
- start: 1348
  end: 1372
  type: flourished
titles: []
extra_info: []
assistant