Parse this person name:

Leonardo Tosi (1939-1990, flourished 1961-1976)
user
first_name: Leonardo
last_name: Tosi
middle_names: []
temporal:
- start: 1939
  end: 1990
  type: life_span
- start: 1961
  end: 1976
  type: flourished
titles: []
extra_info: []
assistant