CREATE TABLE "1978" (
  "opposing_teams" text,
  "against" real,
  "date" text,
  "venue" text,
  "status" text
);

Question: Which venue has 16 against?
SQL: SELECT "venue" FROM "1978" WHERE "against"=16;

Question: What is the against for the opposing team of Wales with the status of Five Nations?
SQL: SELECT AVG("against") FROM "1978" WHERE "status"='five nations' AND "opposing_teams"='wales';