Parse this person name:

Kyra van Baalen (1418-1487, flourished 1436-1457)
user
first_name: Kyra
last_name: van Baalen
middle_names: []
temporal:
- start: 1418
  end: 1487
  type: life_span
- start: 1436
  end: 1457
  type: flourished
titles: []
extra_info: []
assistant