Parse this person name:

Eckart Junck (1237-1303, flourished 1261-1277)
user
first_name: Eckart
last_name: Junck
middle_names: []
temporal:
- start: 1237
  end: 1303
  type: life_span
- start: 1261
  end: 1277
  type: flourished
titles: []
extra_info: []
assistant