user: Question: What is the price of the internet provider that has an upstream rate of 256 kbit and a downstream rate of 512 kbit?
Columns: ['Internet Plan', 'Downstream', 'Upstream', 'Bandwidth Included', 'Price']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['256 kbit', '256 kbit', '128 kbit', 'Unlimited MB', '149 SAR']
SQL:

assistant: SELECT "Price" FROM "Table" WHERE "Upstream" = '256 kbit' AND "Downstream" = '512 kbit';