Parse this person name:

Poncio Torrens (1818-1872, flourished 1848-1867)
user
first_name: Poncio
last_name: Torrens
middle_names: []
temporal:
- start: 1818
  end: 1872
  type: life_span
- start: 1848
  end: 1867
  type: flourished
titles: []
extra_info: []
assistant