Parse this person name:

Léon Bernard (1888-1957, flourished 1910-1939)
user
first_name: Léon
last_name: Bernard
middle_names: []
temporal:
- start: 1888
  end: 1957
  type: life_span
- start: 1910
  end: 1939
  type: flourished
titles: []
extra_info: []
assistant