Parse this person name:

Nynke Hanegraaff, 1790-1870, flourished 1808-1821
user
first_name: Nynke
last_name: Hanegraaff
middle_names: []
temporal:
- start: 1790
  end: 1870
  type: life_span
- start: 1808
  end: 1821
  type: flourished
titles: []
extra_info: []
assistant