Parse this person name:

Sylvie Kruns, 1304-1344, flourished 1328-1339
user
first_name: Sylvie
last_name: Kruns
middle_names: []
temporal:
- start: 1304
  end: 1344
  type: life_span
- start: 1328
  end: 1339
  type: flourished
titles: []
extra_info: []
assistant