Parse this person name:

Sancho Rincón, 1757-1821, flourished 1778-1800
user
first_name: Sancho
last_name: Rincón
middle_names: []
temporal:
- start: 1757
  end: 1821
  type: life_span
- start: 1778
  end: 1800
  type: flourished
titles: []
extra_info: []
assistant