CREATE TABLE table_18318 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

Name the result when the incumbent was george h. mahon
SELECT "Result" FROM table_18318 WHERE "Incumbent" = 'George H. Mahon'
SELECT "Result" FROM "table_18318" WHERE "Incumbent" = 'George H. Mahon'