Parse this person name:

Violeta Sanjuan (1804-1858, flourished 1826-1839)
user
first_name: Violeta
last_name: Sanjuan
middle_names: []
temporal:
- start: 1804
  end: 1858
  type: life_span
- start: 1826
  end: 1839
  type: flourished
titles: []
extra_info: []
assistant