CREATE TABLE "list_of_west_end_theatres" (
  "theatre" text,
  "current_show" text,
  "classification" text,
  "capacity" real,
  "opening_date" text,
  "closing_date" text
);

Question: What is the opening date of the musical at the adelphi theatre?
SQL: SELECT "opening_date" FROM "list_of_west_end_theatres" WHERE "classification"='musical' AND "theatre"='adelphi theatre';

Question: What opening date has a capacity of 100?
SQL: SELECT "opening_date" FROM "list_of_west_end_theatres" WHERE "capacity"=100;