Parse this person name:

Scheibe, Hans-Gerhard G. (Hans-Gerhard Gretl), 1839-1909
user
first_name: Hans-Gerhard
last_name: Scheibe
middle_names:
- Gretl
temporal:
- start: 1839
  end: 1909
  type: life_span
titles: []
extra_info: []
assistant