Parse this person name:

Rens van Dokkum, 1695-1759, flourished 1718-1733
user
first_name: Rens
last_name: van Dokkum
middle_names: []
temporal:
- start: 1695
  end: 1759
  type: life_span
- start: 1718
  end: 1733
  type: flourished
titles: []
extra_info: []
assistant