Parse this person name:

Benjamin Techer, 1405-1474, flourished 1421-1443
user
first_name: Benjamin
last_name: Techer
middle_names: []
temporal:
- start: 1405
  end: 1474
  type: life_span
- start: 1421
  end: 1443
  type: flourished
titles: []
extra_info: []
assistant