Parse this person name:

Gérard Simon (1801-1845, flourished 1831-1840)
user
first_name: Gérard
last_name: Simon
middle_names: []
temporal:
- start: 1801
  end: 1845
  type: life_span
- start: 1831
  end: 1840
  type: flourished
titles: []
extra_info: []
assistant