Parse this person name:

Niek Oemencs (1471-1531, flourished 1498-1521)
user
first_name: Niek
last_name: Oemencs
middle_names: []
temporal:
- start: 1471
  end: 1531
  type: life_span
- start: 1498
  end: 1521
  type: flourished
titles: []
extra_info: []
assistant