Parse this person name:

Sylwia Carsten (1742-1796, flourished 1770-1781)
user
first_name: Sylwia
last_name: Carsten
middle_names: []
temporal:
- start: 1742
  end: 1796
  type: life_span
- start: 1770
  end: 1781
  type: flourished
titles: []
extra_info: []
assistant