Parse this person name:

Mariano Bignardi-Gregorio, 1937-1979, flourished 1963-1974
user
first_name: Mariano
last_name: Bignardi-Gregorio
middle_names: []
temporal:
- start: 1937
  end: 1979
  type: life_span
- start: 1963
  end: 1974
  type: flourished
titles: []
extra_info: []
assistant