Parse this person name:

Alejandro Salas (1777-1852, flourished 1803-1813)
user
first_name: Alejandro
last_name: Salas
middle_names: []
temporal:
- start: 1777
  end: 1852
  type: life_span
- start: 1803
  end: 1813
  type: flourished
titles: []
extra_info: []
assistant