Parse this person name:

Billy Collier, 1225-1273, flourished 1253-1268
user
first_name: Billy
last_name: Collier
middle_names: []
temporal:
- start: 1225
  end: 1273
  type: life_span
- start: 1253
  end: 1268
  type: flourished
titles: []
extra_info: []
assistant