Parse this person name:

Berend Hamann (1235-1280, flourished 1260-1275)
user
first_name: Berend
last_name: Hamann
middle_names: []
temporal:
- start: 1235
  end: 1280
  type: life_span
- start: 1260
  end: 1275
  type: flourished
titles: []
extra_info: []
assistant