Parse this person name:

Pierina Casagrande (1914-1977, flourished 1931-1944)
user
first_name: Pierina
last_name: Casagrande
middle_names: []
temporal:
- start: 1914
  end: 1977
  type: life_span
- start: 1931
  end: 1944
  type: flourished
titles: []
extra_info: []
assistant