Parse this person name:

Keano Vrancken (1425-1497, flourished 1446-1464)
user
first_name: Keano
last_name: Vrancken
middle_names: []
temporal:
- start: 1425
  end: 1497
  type: life_span
- start: 1446
  end: 1464
  type: flourished
titles: []
extra_info: []
assistant