Parse this person name:

Valentina Beltrán (1826-1893, flourished 1854-1881)
user
first_name: Valentina
last_name: Beltrán
middle_names: []
temporal:
- start: 1826
  end: 1893
  type: life_span
- start: 1854
  end: 1881
  type: flourished
titles: []
extra_info: []
assistant