Parse this person name:

Costanzo Spallanzani, 1788-1851, flourished 1803-1818
user
first_name: Costanzo
last_name: Spallanzani
middle_names: []
temporal:
- start: 1788
  end: 1851
  type: life_span
- start: 1803
  end: 1818
  type: flourished
titles: []
extra_info: []
assistant