user: Question: What Position did the Sophomore Darnell Jackson play?
Columns: ['Name', 'Position', 'Height', 'Weight', 'Year', 'Home Town']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Jeremy Case', 'Guard', '6–1', 170.0, 'Sophomore', 'McAlester, OK']
SQL:

assistant: SELECT "Position" FROM "Table" WHERE "Year" = 'Sophomore' AND "Name" = 'Darnell Jackson';