Parse this person name:

Keano van Bergen (1462-1542, flourished 1477-1491)
user
first_name: Keano
last_name: van Bergen
middle_names: []
temporal:
- start: 1462
  end: 1542
  type: life_span
- start: 1477
  end: 1491
  type: flourished
titles: []
extra_info: []
assistant