Parse this person name:

Leif Hecker, 1632-1677, flourished 1648-1667
user
first_name: Leif
last_name: Hecker
middle_names: []
temporal:
- start: 1632
  end: 1677
  type: life_span
- start: 1648
  end: 1667
  type: flourished
titles: []
extra_info: []
assistant