Parse this person name:

León Serrano (1894-1950, flourished 1919-1942)
user
first_name: León
last_name: Serrano
middle_names: []
temporal:
- start: 1894
  end: 1950
  type: life_span
- start: 1919
  end: 1942
  type: flourished
titles: []
extra_info: []
assistant