Parse this person name:

David Simons (1887-1950, flourished 1915-1939)
user
first_name: David
last_name: Simons
middle_names: []
temporal:
- start: 1887
  end: 1950
  type: life_span
- start: 1915
  end: 1939
  type: flourished
titles: []
extra_info: []
assistant