What's 梁愛詩's romanised name?
CREATE TABLE "table1_2263674_1" (
  "romanised_name" text,
  "chinese_name" text,
  "age_at_appointment" real,
  "portfolio" text,
  "prior_occupation" text
);
SELECT "romanised_name" FROM "table1_2263674_1" WHERE "chinese_name"='梁愛詩';