Parse this person name:

Gregory Sanders (1435-1488, flourished 1465-1480)
user
first_name: Gregory
last_name: Sanders
middle_names: []
temporal:
- start: 1435
  end: 1488
  type: life_span
- start: 1465
  end: 1480
  type: flourished
titles: []
extra_info: []
assistant