Parse this person name:

Hans-Helmut Grein Groth, flourished 1813-1825, flourished 1813-1825
user
first_name: Hans-Helmut
last_name: Grein Groth
middle_names: []
temporal:
- start: 1813
  end: 1825
  type: flourished
titles: []
extra_info: []
assistant