Table: royal_canadian_mint_hockey
Columns: year
theme
artist
issue_price
special_notes

Question: What are the special notes for an issue price under 24.95 with an edmonton oilers theme?
SQL: SELECT "special_notes" FROM royal_canadian_mint_hockey WHERE "issue_price" < 24.95 AND "theme" = 'edmonton oilers'

Question: What theme has special notes from calgary flames gift set?
SQL: SELECT "theme" FROM royal_canadian_mint_hockey WHERE "special_notes" = 'from calgary flames gift set'

Question: What year has an issue price over 15.95, and a special notes from edmonton oilers gift set?
SQL: SELECT COUNT("year") FROM royal_canadian_mint_hockey WHERE "issue_price" > 15.95 AND "special_notes" = 'from edmonton oilers gift set'