Parse this person name:

Seifert-Herrmann, Björn (flourished 1858-1878), flourished 1858-1878
user
first_name: Björn
last_name: Seifert-Herrmann
middle_names: []
temporal:
- start: 1858
  end: 1878
  type: flourished
titles: []
extra_info: []
assistant