CREATE TABLE "number_of_days_per_month" (
  "sanskrit" text,
  "pali" text,
  "burmese" text,
  "khmer" text,
  "sinhala" text,
  "thai" text,
  "num_of_days" text,
  "gregorian" text
);

Question: What Thai has a ~Gregorian of April–May?
SQL: SELECT "thai" FROM "number_of_days_per_month" WHERE "gregorian"='april–may';