Parse this person name:

Frithjof Nerger-Siering, 1763-1814, flourished 1780-1796
user
first_name: Frithjof
last_name: Nerger-Siering
middle_names: []
temporal:
- start: 1763
  end: 1814
  type: life_span
- start: 1780
  end: 1796
  type: flourished
titles: []
extra_info: []
assistant