Parse this person name:

Eric West (1231-1286, flourished 1246-1276)
user
first_name: Eric
last_name: West
middle_names: []
temporal:
- start: 1231
  end: 1286
  type: life_span
- start: 1246
  end: 1276
  type: flourished
titles: []
extra_info: []
assistant