Parse this person name:

Gerald Briemer, 1887-1960, flourished 1912-1923
user
first_name: Gerald
last_name: Briemer
middle_names: []
temporal:
- start: 1887
  end: 1960
  type: life_span
- start: 1912
  end: 1923
  type: flourished
titles: []
extra_info: []
assistant