Parse this person name:

Mercier Bègue, Alphonse Gilbert Lucy Lucas, 1779-1822
user
first_name: Alphonse
last_name: Mercier Bègue
middle_names:
- Gilbert
- Lucy
- Lucas
temporal:
- start: 1779
  end: 1822
  type: life_span
titles: []
extra_info: []
assistant