Parse this person name:

Timo Niermann (1798-1842, flourished 1818-1837)
user
first_name: Timo
last_name: Niermann
middle_names: []
temporal:
- start: 1798
  end: 1842
  type: life_span
- start: 1818
  end: 1837
  type: flourished
titles: []
extra_info: []
assistant