Parse this person name:

Helmar Eberhardt, 1415-1461, flourished 1436-1456
user
first_name: Helmar
last_name: Eberhardt
middle_names: []
temporal:
- start: 1415
  end: 1461
  type: life_span
- start: 1436
  end: 1456
  type: flourished
titles: []
extra_info: []
assistant