Parse this person name:

Alexander van Kusen (1463-1504, flourished 1482-1499)
user
first_name: Alexander
last_name: van Kusen
middle_names: []
temporal:
- start: 1463
  end: 1504
  type: life_span
- start: 1482
  end: 1499
  type: flourished
titles: []
extra_info: []
assistant