Parse this person name:

Jürgen Walter, 1279-1352, flourished 1303-1328
user
first_name: Jürgen
last_name: Walter
middle_names: []
temporal:
- start: 1279
  end: 1352
  type: life_span
- start: 1303
  end: 1328
  type: flourished
titles: []
extra_info: []
assistant