Parse this person name:

Douglas Long (1927-2002, flourished 1946-1956)
user
first_name: Douglas
last_name: Long
middle_names: []
temporal:
- start: 1927
  end: 2002
  type: life_span
- start: 1946
  end: 1956
  type: flourished
titles: []
extra_info: []
assistant