Parse this person name:

Segismundo Valbuena, 1817-1861, flourished 1846-1856
user
first_name: Segismundo
last_name: Valbuena
middle_names: []
temporal:
- start: 1817
  end: 1861
  type: life_span
- start: 1846
  end: 1856
  type: flourished
titles: []
extra_info: []
assistant