Parse this person name:

Stephanie Pieper (1401-1450, flourished 1431-1445)
user
first_name: Stephanie
last_name: Pieper
middle_names: []
temporal:
- start: 1401
  end: 1450
  type: life_span
- start: 1431
  end: 1445
  type: flourished
titles: []
extra_info: []
assistant