Parse this person name:

Ernest Wernecke (1798-1846, flourished 1818-1835)
user
first_name: Ernest
last_name: Wernecke
middle_names: []
temporal:
- start: 1798
  end: 1846
  type: life_span
- start: 1818
  end: 1835
  type: flourished
titles: []
extra_info: []
assistant