Parse this person name:

Christopher Burns-Johnson, 1400-1461, flourished 1416-1428
user
first_name: Christopher
last_name: Burns-Johnson
middle_names: []
temporal:
- start: 1400
  end: 1461
  type: life_span
- start: 1416
  end: 1428
  type: flourished
titles: []
extra_info: []
assistant