Table: royal_canadian_mint_coins_8
Columns: year
theme
artist
mintage
issue_price

Question: What was the issue price for the Trumpeter Swan set?
SQL: SELECT "issue_price" FROM royal_canadian_mint_coins_8 WHERE "theme" = 'trumpeter swan'

Question: Who was the artist with a mintage of 40,000 and an issue price of $45.95?
SQL: SELECT "artist" FROM royal_canadian_mint_coins_8 WHERE "mintage" = '40,000' AND "issue_price" = '45.95'