Table: canada_stamps_2005_09
Columns: date_of_issue
theme
denomination
design
illustration
printing_process
paper_type
first_day_cover_cancellation

Question: What denominations are the stamps with themes opera, léopold simoneau and pierrette alarie?
SQL: SELECT "denomination" FROM canada_stamps_2005_09 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 canada_stamps_2005_09 WHERE "theme" = 'Duck Decoys, Barrow''s Golden Eye'