user: Question: What is the maximum download speed for the Internet Premium 3G plan?
Columns: ['Company', 'Plan name', 'Technology', 'Maximum download speed/ kbps', 'Data limit/ GB', 'Monthly price incl. VAT/ CZK']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['T-Mobile', 'Internet Basic', '3G', '512', '2/month', '474,81']
SQL:

assistant: SELECT "Maximum download speed/ kbps" FROM "Table" WHERE "Technology" = '3G' AND "Plan name" = 'Internet Premium';