Parse this person name:

Keith Kerr, 1727-1790, flourished 1757-1767
user
first_name: Keith
last_name: Kerr
middle_names: []
temporal:
- start: 1727
  end: 1790
  type: life_span
- start: 1757
  end: 1767
  type: flourished
titles: []
extra_info: []
assistant