CREATE TABLE "rugby_sevens" (
  "name" text,
  "pos" text,
  "height" text,
  "weight" text,
  "club" text
);

Question: What is the name when the position was fullback, hooker?
SQL: SELECT "name" FROM "rugby_sevens" WHERE "pos"='fullback, hooker';

Question: What is the name when the position is centre?
SQL: SELECT "name" FROM "rugby_sevens" WHERE "pos"='centre';