Parse this person name:

Julian Zwijsen (1303-1378, flourished 1328-1357)
user
first_name: Julian
last_name: Zwijsen
middle_names: []
temporal:
- start: 1303
  end: 1378
  type: life_span
- start: 1328
  end: 1357
  type: flourished
titles: []
extra_info: []
assistant