Parse this person name:

Ehrhard Salz (1798-1853, flourished 1818-1834)
user
first_name: Ehrhard
last_name: Salz
middle_names: []
temporal:
- start: 1798
  end: 1853
  type: life_span
- start: 1818
  end: 1834
  type: flourished
titles: []
extra_info: []
assistant