Parse this person name:

Christine Stevenson, 1918-1997, flourished 1940-1964
user
first_name: Christine
last_name: Stevenson
middle_names: []
temporal:
- start: 1918
  end: 1997
  type: life_span
- start: 1940
  end: 1964
  type: flourished
titles: []
extra_info: []
assistant