Parse this person name:

Tristan Sanchez, 1234-1294, flourished 1254-1277
user
first_name: Tristan
last_name: Sanchez
middle_names: []
temporal:
- start: 1234
  end: 1294
  type: life_span
- start: 1254
  end: 1277
  type: flourished
titles: []
extra_info: []
assistant