Parse this person name:

Saverio Spallanzani (1911-1991, flourished 1930-1953)
user
first_name: Saverio
last_name: Spallanzani
middle_names: []
temporal:
- start: 1911
  end: 1991
  type: life_span
- start: 1930
  end: 1953
  type: flourished
titles: []
extra_info: []
assistant