user: Question: What is the theme of the Year 2002 which was created by Artist Dan Fell?
Columns: ['Year', 'Theme', 'Artist', 'Mintage', 'Issue Price']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2000.0, 'Steam Buggy', 'John Mardon', '44,367', '$59.95']
SQL:

assistant: SELECT "Theme" FROM "Table" WHERE "Year" = 2002.0 AND "Artist" = 'Dan Fell';