user: Question: How many years of NBA experience does the player who plays position G for the Portland Trail Blazers?
Columns: ['Player', 'Pos.', 'Nationality', 'Team', 'Previous team', 'Years of NBA experience [a ]', 'Career with the franchise [b ]']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Em Bryant Category:Articles with hCards', 'G', 'United States', 'Buffalo Braves', 'Boston Celtics', 6.0, '1970 – 1972']
SQL:

assistant: SELECT "Years of NBA experience [a ]" FROM "Table" WHERE "Pos." = 'G' AND "Team" = 'Portland Trail Blazers';