Parse this person name:

Kai Janssen, 1758-1814, flourished 1784-1797
user
first_name: Kai
last_name: Janssen
middle_names: []
temporal:
- start: 1758
  end: 1814
  type: life_span
- start: 1784
  end: 1797
  type: flourished
titles: []
extra_info: []
assistant