Parse this person name:

Osvaldo Gras (1879-1953, flourished 1904-1928)
user
first_name: Osvaldo
last_name: Gras
middle_names: []
temporal:
- start: 1879
  end: 1953
  type: life_span
- start: 1904
  end: 1928
  type: flourished
titles: []
extra_info: []
assistant