Parse this person name:

Koen Vignon (1873-1952, flourished 1902-1931)
user
first_name: Koen
last_name: Vignon
middle_names: []
temporal:
- start: 1873
  end: 1952
  type: life_span
- start: 1902
  end: 1931
  type: flourished
titles: []
extra_info: []
assistant