CREATE TABLE table_204_336 (id NUMBER, "operators" CLOB, "named trains" CLOB, "destination" CLOB, "year begun" CLOB, "year discontinued" NUMBER)

how many trains were discontinued in 1958 ?
SELECT COUNT("named trains") FROM table_204_336 WHERE "year discontinued" = 1958
SELECT COUNT("named trains") FROM "table_204_336" WHERE "year discontinued" = 1958