Parse this person name:

Boris Coret-Gemen, 1253-1302, flourished 1277-1291
user
first_name: Boris
last_name: Coret-Gemen
middle_names: []
temporal:
- start: 1253
  end: 1302
  type: life_span
- start: 1277
  end: 1291
  type: flourished
titles: []
extra_info: []
assistant