Parse this person name:

Nienke Westermann (1465-1506, flourished 1490-1501)
user
first_name: Nienke
last_name: Westermann
middle_names: []
temporal:
- start: 1465
  end: 1506
  type: life_span
- start: 1490
  end: 1501
  type: flourished
titles: []
extra_info: []
assistant