Parse this person name:

Herma Jähn, 1914-1973, flourished 1931-1951
user
first_name: Herma
last_name: Jähn
middle_names: []
temporal:
- start: 1914
  end: 1973
  type: life_span
- start: 1931
  end: 1951
  type: flourished
titles: []
extra_info: []
assistant