Parse this person name:

Kai van Voorst (1737-1787, flourished 1764-1777)
user
first_name: Kai
last_name: van Voorst
middle_names: []
temporal:
- start: 1737
  end: 1787
  type: life_span
- start: 1764
  end: 1777
  type: flourished
titles: []
extra_info: []
assistant