Parse this person name:

Samuel Langern (1442-1517, flourished 1457-1472)
user
first_name: Samuel
last_name: Langern
middle_names: []
temporal:
- start: 1442
  end: 1517
  type: life_span
- start: 1457
  end: 1472
  type: flourished
titles: []
extra_info: []
assistant