Table: canada_stamps_3
Columns: date_of_issue
denomination
design
paper_type
first_day_cover_cancellation

Question: What type of paper is the 1 cent denominations made on?
SQL: SELECT "paper_type" FROM canada_stamps_3 WHERE "denomination" = '1 cent'

Question: What is the paper type that the one that was issued on 26 july 2007 done on?
SQL: SELECT "paper_type" FROM canada_stamps_3 WHERE "date_of_issue" = '26 july 2007'