Table: snf_results_3
Columns: date
visiting_team
final_score
host_team
stadium

Question: Which Visiting Team is on december 23?
SQL: SELECT "visiting_team" FROM snf_results_3 WHERE "date" = 'december 23'

Question: Which Host Team has Final Score of 42-23?
SQL: SELECT "host_team" FROM snf_results_3 WHERE "final_score" = '42-23'

Question: When did Final Score of 31-7 happen?
SQL: SELECT "date" FROM snf_results_3 WHERE "final_score" = '31-7'