Parse this person name:

Etta Junken-Beier (1414-1492, flourished 1434-1447)
user
first_name: Etta
last_name: Junken-Beier
middle_names: []
temporal:
- start: 1414
  end: 1492
  type: life_span
- start: 1434
  end: 1447
  type: flourished
titles: []
extra_info: []
assistant