CREATE TABLE table_70748 ("Year" FLOAT, "Catcher" TEXT, "First Baseman" TEXT, "Second Baseman" TEXT, "Shortstop" TEXT, "Third Baseman" TEXT, "Rightfielder" TEXT, "Centerfielder" TEXT, "Leftfielder" TEXT, "Starting Pitcher" TEXT)

What is the name of the shortstop when the Catcher was johnny roseboro, and a Third Baseman of jim lefebvre, and a Second Baseman of nate oliver?
SELECT "Shortstop" FROM table_70748 WHERE "Catcher" = 'johnny roseboro' AND "Third Baseman" = 'jim lefebvre' AND "Second Baseman" = 'nate oliver'
SELECT "Shortstop" FROM "table_70748" WHERE "Catcher" = 'johnny roseboro' AND "Second Baseman" = 'nate oliver' AND "Third Baseman" = 'jim lefebvre'