Parse this person name:

Eugen Heser, 1284-1331, flourished 1303-1325
user
first_name: Eugen
last_name: Heser
middle_names: []
temporal:
- start: 1284
  end: 1331
  type: life_span
- start: 1303
  end: 1325
  type: flourished
titles: []
extra_info: []
assistant