Parse this person name:

Xavier David, 1909-1977, flourished 1939-1963
user
first_name: Xavier
last_name: David
middle_names: []
temporal:
- start: 1909
  end: 1977
  type: life_span
- start: 1939
  end: 1963
  type: flourished
titles: []
extra_info: []
assistant