Parse this person name:

Stijn van der Klein, 1248-1297, flourished 1267-1287
user
first_name: Stijn
last_name: van der Klein
middle_names: []
temporal:
- start: 1248
  end: 1297
  type: life_span
- start: 1267
  end: 1287
  type: flourished
titles: []
extra_info: []
assistant