Parse this person name:

Bradley Roberts, 1795-1873, flourished 1820-1838
user
first_name: Bradley
last_name: Roberts
middle_names: []
temporal:
- start: 1795
  end: 1873
  type: life_span
- start: 1820
  end: 1838
  type: flourished
titles: []
extra_info: []
assistant