Parse this person name:

Justin Johnson, 1887-1936, flourished 1914-1931
user
first_name: Justin
last_name: Johnson
middle_names: []
temporal:
- start: 1887
  end: 1936
  type: life_span
- start: 1914
  end: 1931
  type: flourished
titles: []
extra_info: []
assistant