Parse this person name:

Sonja Steinberg, 1216-1294, flourished 1236-1260
user
first_name: Sonja
last_name: Steinberg
middle_names: []
temporal:
- start: 1216
  end: 1294
  type: life_span
- start: 1236
  end: 1260
  type: flourished
titles: []
extra_info: []
assistant