CREATE TABLE "long_period" (
  "higher_harmonics" text,
  "darwin" text,
  "period" text,
  "speed" text,
  "doodson_coefficients" text,
  "noaa" text
);

Question: What higher harmonics have an NOAA of 8?
SQL: SELECT "higher_harmonics" FROM "long_period" WHERE "noaa"='8';

Question: What is the speed of the higher harmonics that have an NOAA of 37?
SQL: SELECT "speed" FROM "long_period" WHERE "noaa"='37';

Question: What is the NOAA of the higher harmonics that have a Darwin of mn 4?
SQL: SELECT "noaa" FROM "long_period" WHERE "darwin"='mn 4';

Question: What is the NOAA of the higher harmonics that have a Darwin of m sf?
SQL: SELECT "noaa" FROM "long_period" WHERE "darwin"='m sf';

Question: Which higher harmonics have a speed of 0.0821373?
SQL: SELECT "higher_harmonics" FROM "long_period" WHERE "speed"='0.0821373';