Parse this person name:

Sami Keijser (1869-1911, flourished 1898-1906)
user
first_name: Sami
last_name: Keijser
middle_names: []
temporal:
- start: 1869
  end: 1911
  type: life_span
- start: 1898
  end: 1906
  type: flourished
titles: []
extra_info: []
assistant