Parse this person name:

Gregory Miller, 1561-1607, flourished 1578-1594
user
first_name: Gregory
last_name: Miller
middle_names: []
temporal:
- start: 1561
  end: 1607
  type: life_span
- start: 1578
  end: 1594
  type: flourished
titles: []
extra_info: []
assistant