CREATE TABLE table_54653 ("Player" TEXT, "No. ( s ) " TEXT, "Height in Ft." TEXT, "Position" TEXT, "Years for Rockets" TEXT, "School/Club Team/Country" TEXT)

During what years did the Guard from Oklahoma with a height of 6-6 play for the Rockets?
SELECT "Years for Rockets" FROM table_54653 WHERE "Height in Ft." = '6-6' AND "Position" = 'guard' AND "School/Club Team/Country" = 'oklahoma'
SELECT "Years for Rockets" FROM "table_54653" WHERE "Height in Ft." = '6-6' AND "Position" = 'guard' AND "School/Club Team/Country" = 'oklahoma'