Parse this person name:

Bas de Gratie, 1913-1975, flourished 1929-1943
user
first_name: Bas
last_name: de Gratie
middle_names: []
temporal:
- start: 1913
  end: 1975
  type: life_span
- start: 1929
  end: 1943
  type: flourished
titles: []
extra_info: []
assistant