Parse this person name:

Christopher Merritt, 1451-1495, flourished 1478-1490
user
first_name: Christopher
last_name: Merritt
middle_names: []
temporal:
- start: 1451
  end: 1495
  type: life_span
- start: 1478
  end: 1490
  type: flourished
titles: []
extra_info: []
assistant