Parse this person name:

George Zänker (1411-1453, flourished 1436-1448)
user
first_name: George
last_name: Zänker
middle_names: []
temporal:
- start: 1411
  end: 1453
  type: life_span
- start: 1436
  end: 1448
  type: flourished
titles: []
extra_info: []
assistant