Question: Find the pixels of the screen modes that are used by both phones with full accreditation types and phones with Provisional accreditation types.
SQL: SELECT t1.pixels FROM screen_mode AS t1 JOIN phone AS t2 ON t1.Graphics_mode  =  t2.screen_mode WHERE t2.Accreditation_type  =  'Provisional' INTERSECT SELECT t1.pixels FROM screen_mode AS t1 JOIN phone AS t2 ON t1.Graphics_mode  =  t2.screen_mode WHERE t2.Accreditation_type  =  'Full'