Parse this person name:

Alfred Köhler (1729-1807, flourished 1756-1777)
user
first_name: Alfred
last_name: Köhler
middle_names: []
temporal:
- start: 1729
  end: 1807
  type: life_span
- start: 1756
  end: 1777
  type: flourished
titles: []
extra_info: []
assistant