CREATE TABLE "train_services" (
  "train_no" text,
  "train_name" text,
  "origin" text,
  "destination" text,
  "frequency" text
);

Question: How many trains leave from puri?
SQL: SELECT COUNT("train_name") FROM "train_services" WHERE "origin"='Puri';

Question: What train number is heading to amritsar?
SQL: SELECT "train_no" FROM "train_services" WHERE "destination"='Amritsar';

Question: How often does a train leave sealdah?
SQL: SELECT "frequency" FROM "train_services" WHERE "origin"='Sealdah';

Question: Where does the bg express train end?
SQL: SELECT "destination" FROM "train_services" WHERE "train_name"='BG Express';

Question: What's the name of train number 15647/48?
SQL: SELECT "train_name" FROM "train_services" WHERE "train_no"='15647/48';