Parse this person name:

Vera Jansen (1708-1761, flourished 1725-1752)
user
first_name: Vera
last_name: Jansen
middle_names: []
temporal:
- start: 1708
  end: 1761
  type: life_span
- start: 1725
  end: 1752
  type: flourished
titles: []
extra_info: []
assistant