user: Question: What is the oklahoma has Bush from Nebraska in year 2004?
Columns: ['Year', 'Kansas', 'Nebraska', 'North Dakota', 'Oklahoma', 'South Dakota', 'Texas']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Year', 'Kansas', 'Nebraska', 'North Dakota', 'Oklahoma', 'South Dakota', 'Texas']
SQL:

assistant: SELECT "Oklahoma" FROM "Table" WHERE "Nebraska" = 'Bush' AND "Year" = '2004';