Parse this person name:

Leszek Roht (1733-1783, flourished 1749-1778)
user
first_name: Leszek
last_name: Roht
middle_names: []
temporal:
- start: 1733
  end: 1783
  type: life_span
- start: 1749
  end: 1778
  type: flourished
titles: []
extra_info: []
assistant