Parse this person name:

Julian van Heusden, 1290-1349, flourished 1313-1341
user
first_name: Julian
last_name: van Heusden
middle_names: []
temporal:
- start: 1290
  end: 1349
  type: life_span
- start: 1313
  end: 1341
  type: flourished
titles: []
extra_info: []
assistant