How many candidates were nominated in 1952 with under 305,133 votes?
CREATE TABLE "lanka_sama_samaja_party_electoral_result" (
  "date" text,
  "candidates_nominated" real,
  "candidates_elected" text,
  "votes" real,
  "pct_of_national_vote" real
);
SELECT SUM("candidates_nominated") FROM "lanka_sama_samaja_party_electoral_result" WHERE "date"='1952' AND "votes"<'305,133';