CREATE TABLE "references" (
  "rank" real,
  "railway_station" text,
  "annual_entry_exit_millions_2011_12" text,
  "annual_interchanges_millions_2011_12" text,
  "total_passengers_millions_2011_12" text,
  "location" text,
  "main_services" text,
  "number_of_platforms" real
);

Question: What is the main service for the station with 14.849 million passengers 2011-12? 
SQL: SELECT "main_services" FROM "references" WHERE "total_passengers_millions_2011_12"='14.849';

Question: What is the lowest rank of Gatwick Airport? 
SQL: SELECT MIN("rank") FROM "references" WHERE "railway_station"='Gatwick Airport';

Question: Which location has 103.534 million passengers in 2011-12? 
SQL: SELECT "location" FROM "references" WHERE "total_passengers_millions_2011_12"='103.534';

Question: How many annual interchanges in the millions occurred in 2011-12 when the number of annual entry/exits was 36.609 million? 
SQL: SELECT "annual_interchanges_millions_2011_12" FROM "references" WHERE "annual_entry_exit_millions_2011_12"='36.609';