CREATE TABLE table_58597 ("Maker" TEXT, "Model" TEXT, "Intro year" TEXT, "Screen size  ( inch ) " TEXT, "Screen type" TEXT, "Weight" TEXT, "Screen pixels" TEXT, "Hours reading" TEXT, "Touch screen" TEXT, "Wireless network" TEXT, "Internal storage" TEXT, "Card reader slot" TEXT)

Which wireless network did LCD displays with 4 GB of internal storage use?
SELECT "Wireless network" FROM table_58597 WHERE "Screen type" = 'lcd' AND "Internal storage" = '4 gb'
SELECT "Wireless network" FROM "table_58597" WHERE "Internal storage" = '4 gb' AND "Screen type" = 'lcd'