Parse this person name:

Anthony Powers (1911-1973, flourished 1940-1957)
user
first_name: Anthony
last_name: Powers
middle_names: []
temporal:
- start: 1911
  end: 1973
  type: life_span
- start: 1940
  end: 1957
  type: flourished
titles: []
extra_info: []
assistant