Parse this person name:

Gustav Harloff, 1863-1928, flourished 1880-1898
user
first_name: Gustav
last_name: Harloff
middle_names: []
temporal:
- start: 1863
  end: 1928
  type: life_span
- start: 1880
  end: 1898
  type: flourished
titles: []
extra_info: []
assistant