CREATE TABLE "series_2_1994" (
  "episode_no" text,
  "episode_title" text,
  "uk_broadcast_date" text,
  "presenter" text,
  "countries_visited" text
);

Question: What was the broadcast date of the episode that visited South Africa?
SQL: SELECT "uk_broadcast_date" FROM "series_2_1994" WHERE "countries_visited"='south africa';

Question: Which country did Natalia Makarova visit?
SQL: SELECT "countries_visited" FROM "series_2_1994" WHERE "presenter"='natalia makarova';

Question: What is the broadcast date for the episode titled, "From Hong Kong to Ulaanbaatar"?
SQL: SELECT "uk_broadcast_date" FROM "series_2_1994" WHERE "episode_title"='\"from hong kong to ulaanbaatar\"';

Question: What is the broadcast date for the episode titled, "St. Petersburg to Tashkent"?
SQL: SELECT "uk_broadcast_date" FROM "series_2_1994" WHERE "episode_title"='\"st. petersburg to tashkent\"';