Parse this person name:

Alexej Löwer, 1616-1659, flourished 1644-1654
user
first_name: Alexej
last_name: Löwer
middle_names: []
temporal:
- start: 1616
  end: 1659
  type: life_span
- start: 1644
  end: 1654
  type: flourished
titles: []
extra_info: []
assistant