Parse this person name:

Adam de Graaf (1930-1996, flourished 1959-1987)
user
first_name: Adam
last_name: de Graaf
middle_names: []
temporal:
- start: 1930
  end: 1996
  type: life_span
- start: 1959
  end: 1987
  type: flourished
titles: []
extra_info: []
assistant