Parse this person name:

Michael Spears, 1238-1278, flourished 1264-1273
user
first_name: Michael
last_name: Spears
middle_names: []
temporal:
- start: 1238
  end: 1278
  type: life_span
- start: 1264
  end: 1273
  type: flourished
titles: []
extra_info: []
assistant