Parse this person name:

Jay van Ochten-Martens, 1211-1285, flourished 1231-1258
user
first_name: Jay
last_name: van Ochten-Martens
middle_names: []
temporal:
- start: 1211
  end: 1285
  type: life_span
- start: 1231
  end: 1258
  type: flourished
titles: []
extra_info: []
assistant