Parse this person name:

Teun Helmerhorst (1495-1559, flourished 1511-1540)
user
first_name: Teun
last_name: Helmerhorst
middle_names: []
temporal:
- start: 1495
  end: 1559
  type: life_span
- start: 1511
  end: 1540
  type: flourished
titles: []
extra_info: []
assistant