Parse this person name:

Christopher Morris (1913-1955, flourished 1940-1950)
user
first_name: Christopher
last_name: Morris
middle_names: []
temporal:
- start: 1913
  end: 1955
  type: life_span
- start: 1940
  end: 1950
  type: flourished
titles: []
extra_info: []
assistant