Parse this person name:

Oskar Lachmann, 1318-1394, flourished 1337-1348
user
first_name: Oskar
last_name: Lachmann
middle_names: []
temporal:
- start: 1318
  end: 1394
  type: life_span
- start: 1337
  end: 1348
  type: flourished
titles: []
extra_info: []
assistant