CREATE TABLE screen_mode (Graphics_mode FLOAT, Char_cells CLOB, Pixels CLOB, Hardware_colours FLOAT, used_kb FLOAT, map CLOB, Type CLOB)
CREATE TABLE phone (Company_name CLOB, Hardware_Model_name CLOB, Accreditation_type CLOB, Accreditation_level CLOB, Date CLOB, chip_model CLOB, screen_mode CLOB)
CREATE TABLE chip_model (Model_name CLOB, Launch_year FLOAT, RAM_MiB FLOAT, ROM_MiB FLOAT, Slots CLOB, WiFi CLOB, Bluetooth CLOB)

Tell me the proportion of the number of chips from different company names for the phone whose screen mode type is 'Graphics' with a pie chart.
SELECT T2.Company_name, COUNT(T2.Company_name) FROM screen_mode AS T1 JOIN phone AS T2 ON T1.Graphics_mode = T2.screen_mode WHERE T1.Type = "Graphics" GROUP BY T2.Company_name
SELECT "T2"."Company_name", COUNT("T2"."Company_name") FROM "screen_mode" "T1" JOIN "phone" "T2" ON "T1"."Graphics_mode" = "T2"."screen_mode" WHERE "Graphics" = "T1"."Type" GROUP BY "T2"."Company_name"