Parse this person name:

Lex Butselaar, 1689-1750, flourished 1705-1728
user
first_name: Lex
last_name: Butselaar
middle_names: []
temporal:
- start: 1689
  end: 1750
  type: life_span
- start: 1705
  end: 1728
  type: flourished
titles: []
extra_info: []
assistant