Parse this person name:

Tirza van Olst, 1535-1582, flourished 1550-1564
user
first_name: Tirza
last_name: van Olst
middle_names: []
temporal:
- start: 1535
  end: 1582
  type: life_span
- start: 1550
  end: 1564
  type: flourished
titles: []
extra_info: []
assistant