Parse this person name:

Koen Neuzerling, 1311-1368, flourished 1336-1352
user
first_name: Koen
last_name: Neuzerling
middle_names: []
temporal:
- start: 1311
  end: 1368
  type: life_span
- start: 1336
  end: 1352
  type: flourished
titles: []
extra_info: []
assistant