CREATE TABLE table_name_89 (points NUMBER, year VARCHAR2, class VARCHAR2, rank VARCHAR2)

What is the sum of Points for 250cc class, ranked 13th, later than 1955?
SELECT SUM(points) FROM table_name_89 WHERE class = "250cc" AND rank = "13th" AND year > 1955
SELECT SUM("points") FROM "table_name_89" WHERE "13th" = "rank" AND "250cc" = "class" AND "year" > 1955