Parse this person name:

Christopher Mason, 1201-1274, flourished 1225-1248
user
first_name: Christopher
last_name: Mason
middle_names: []
temporal:
- start: 1201
  end: 1274
  type: life_span
- start: 1225
  end: 1248
  type: flourished
titles: []
extra_info: []
assistant