Parse this person name:

Wolfhard Ehlert (1235-1286, flourished 1253-1268)
user
first_name: Wolfhard
last_name: Ehlert
middle_names: []
temporal:
- start: 1235
  end: 1286
  type: life_span
- start: 1253
  end: 1268
  type: flourished
titles: []
extra_info: []
assistant