Parse this person name:

Mariano Vallejo, 1922-1990, flourished 1937-1950
user
first_name: Mariano
last_name: Vallejo
middle_names: []
temporal:
- start: 1922
  end: 1990
  type: life_span
- start: 1937
  end: 1950
  type: flourished
titles: []
extra_info: []
assistant