Parse this person name:

William White (1225-1301, flourished 1248-1276)
user
first_name: William
last_name: White
middle_names: []
temporal:
- start: 1225
  end: 1301
  type: life_span
- start: 1248
  end: 1276
  type: flourished
titles: []
extra_info: []
assistant