Parse this person name:

Laurence Poulain, 1812-1865, flourished 1838-1859
user
first_name: Laurence
last_name: Poulain
middle_names: []
temporal:
- start: 1812
  end: 1865
  type: life_span
- start: 1838
  end: 1859
  type: flourished
titles: []
extra_info: []
assistant