What is the English name for the Chinese name of 蘇永康 later than 1974?
CREATE TABLE "list_of_male_capital_artists_singers" (
  "english_name" text,
  "chinese_name" text,
  "year_signed" real,
  "year_separated" text,
  "reason_for_separation" text
);
SELECT "english_name" FROM "list_of_male_capital_artists_singers" WHERE "year_signed">1974 AND "chinese_name"='蘇永康';