Parse this person name:

Benjamin Kamper, 1817-1892, flourished 1839-1864
user
first_name: Benjamin
last_name: Kamper
middle_names: []
temporal:
- start: 1817
  end: 1892
  type: life_span
- start: 1839
  end: 1864
  type: flourished
titles: []
extra_info: []
assistant