CREATE TABLE "2006" (
  "date_of_issue" text,
  "theme" text,
  "denomination" text,
  "design" text,
  "illustration" text,
  "printing_process" text,
  "paper_type" text,
  "first_day_cover_cancellation" text
);

Question: What denominations are the stamps with themes opera, léopold simoneau and pierrette alarie?
SQL: SELECT "denomination" FROM "2006" WHERE "theme"='Opera, Léopold Simoneau and Pierrette Alarie';

Question: What kind of paper were the stamps with the theme duck decoys, barrow's golden eye printed on?
SQL: SELECT "paper_type" FROM "2006" WHERE "theme"='Duck Decoys, Barrow''s Golden Eye';