Parse this person name:

Gary Williams, 1948-1988, flourished 1978-1983
user
first_name: Gary
last_name: Williams
middle_names: []
temporal:
- start: 1948
  end: 1988
  type: life_span
- start: 1978
  end: 1983
  type: flourished
titles: []
extra_info: []
assistant