Parse this person name:

William Edwards, 1774-1828, flourished 1799-1819
user
first_name: William
last_name: Edwards
middle_names: []
temporal:
- start: 1774
  end: 1828
  type: life_span
- start: 1799
  end: 1819
  type: flourished
titles: []
extra_info: []
assistant