Parse this person name:

Sigmund Werner (1312-1374, flourished 1336-1351)
user
first_name: Sigmund
last_name: Werner
middle_names: []
temporal:
- start: 1312
  end: 1374
  type: life_span
- start: 1336
  end: 1351
  type: flourished
titles: []
extra_info: []
assistant