What key details about david hernandez vallin can be extracted from the following bio? Bio: david hernandez vallin -lrb- born 21 november 1967 -rrb- is a mexican politician from the institutional revolutionary party . from 2009 to 2012 he served as deputy of the lxi legislature of the mexican congress representing aguascalientes .
Answer:
- birth date is 21 november 1967- name is david hernandez vallin- nationality is mexican- birth place is aguascalientes , aguascalientes , mexico- occupation is politician