Parse this person name:

Sybilla Koch (1830-1872, flourished 1846-1862)
user
first_name: Sybilla
last_name: Koch
middle_names: []
temporal:
- start: 1830
  end: 1872
  type: life_span
- start: 1846
  end: 1862
  type: flourished
titles: []
extra_info: []
assistant