Parse this person name:

Nathan Verhaar (1722-1790, flourished 1745-1772)
user
first_name: Nathan
last_name: Verhaar
middle_names: []
temporal:
- start: 1722
  end: 1790
  type: life_span
- start: 1745
  end: 1772
  type: flourished
titles: []
extra_info: []
assistant