Parse this person name:

Gregory Owens, 1417-1489, flourished 1447-1467
user
first_name: Gregory
last_name: Owens
middle_names: []
temporal:
- start: 1417
  end: 1489
  type: life_span
- start: 1447
  end: 1467
  type: flourished
titles: []
extra_info: []
assistant