Parse this person name:

Ninthe Oennen (1226-1285, flourished 1247-1260)
user
first_name: Ninthe
last_name: Oennen
middle_names: []
temporal:
- start: 1226
  end: 1285
  type: life_span
- start: 1247
  end: 1260
  type: flourished
titles: []
extra_info: []
assistant