Parse this person name:

Cornelia Helmerhorst (1520-1591, flourished 1543-1562)
user
first_name: Cornelia
last_name: Helmerhorst
middle_names: []
temporal:
- start: 1520
  end: 1591
  type: life_span
- start: 1543
  end: 1562
  type: flourished
titles: []
extra_info: []
assistant