Task: Text to Code
Input (English): SQL: SELECT Avg ( T1.Hardware_colours ) FROM screen_mode AS T1 WHERE T1.Hardware_colours NOT IN ( SELECT T2.chip_model FROM phone AS T2 )
Feedback: Replace chip model with model name , phone with chip model , hardware colours with ram mib , screen mode with chip model .
Output (English): SELECT avg(RAM_MiB) FROM chip_model WHERE model_name NOT IN (SELECT chip_model FROM phone)