Parse this person name:

Joseph Dumont, 1831-1878, flourished 1860-1873
user
first_name: Joseph
last_name: Dumont
middle_names: []
temporal:
- start: 1831
  end: 1878
  type: life_span
- start: 1860
  end: 1873
  type: flourished
titles: []
extra_info: []
assistant