Parse this person name:

Alexander Miller-Smith, 1232-1284, flourished 1258-1279
user
first_name: Alexander
last_name: Miller-Smith
middle_names: []
temporal:
- start: 1232
  end: 1284
  type: life_span
- start: 1258
  end: 1279
  type: flourished
titles: []
extra_info: []
assistant