Parse this person name:

Bas Genefaas (1859-1939, flourished 1887-1915)
user
first_name: Bas
last_name: Genefaas
middle_names: []
temporal:
- start: 1859
  end: 1939
  type: life_span
- start: 1887
  end: 1915
  type: flourished
titles: []
extra_info: []
assistant