Parse this person name:

Sjoerd Lemmens, 1759-1803, flourished 1783-1798
user
first_name: Sjoerd
last_name: Lemmens
middle_names: []
temporal:
- start: 1759
  end: 1803
  type: life_span
- start: 1783
  end: 1798
  type: flourished
titles: []
extra_info: []
assistant