Parse this person name:

Scott Johnson, 1942-1991, flourished 1960-1975
user
first_name: Scott
last_name: Johnson
middle_names: []
temporal:
- start: 1942
  end: 1991
  type: life_span
- start: 1960
  end: 1975
  type: flourished
titles: []
extra_info: []
assistant