Parse this person name:

Bas de Vries, 1216-1268, flourished 1231-1258
user
first_name: Bas
last_name: de Vries
middle_names: []
temporal:
- start: 1216
  end: 1268
  type: life_span
- start: 1231
  end: 1258
  type: flourished
titles: []
extra_info: []
assistant