Parse this person name:

Stijn Sas, 1413-1482, flourished 1440-1460
user
first_name: Stijn
last_name: Sas
middle_names: []
temporal:
- start: 1413
  end: 1482
  type: life_span
- start: 1440
  end: 1460
  type: flourished
titles: []
extra_info: []
assistant