CREATE TABLE "diphthongs" (
  "late_old_english_anglian" text,
  "early_middle_english" text,
  "late_middle_english" text,
  "early_modern_english" text,
  "modern_english" text,
  "example" text
);

Question: What is the phonology used in the example streht > "straight"?
SQL: SELECT "early_middle_english" FROM "diphthongs" WHERE "example"='streht > \"straight\"';

Question: What is the Anglian phonology used in the example dæg > "day"; grǣg > "gray"?
SQL: SELECT "late_old_english_anglian" FROM "diphthongs" WHERE "example"='dæg > \"day\"; grǣg > \"gray\"';

Question: What is the modern English phonology used in the example weg > "way"; regn > "rain"?
SQL: SELECT "modern_english" FROM "diphthongs" WHERE "example"='weg > \"way\"; regn > \"rain\"';

Question: What is the Early Modern English phonology used in the example bōg > "bough"; plōg > plōh > "plough"?
SQL: SELECT "early_modern_english" FROM "diphthongs" WHERE "example"='bōg > \"bough\"; plōg > plōh > \"plough\"';

Question: What is the Late Middle English equivalent of the Anglian æg, ǣg?
SQL: SELECT "late_middle_english" FROM "diphthongs" WHERE "late_old_english_anglian"='æg, ǣg';

Question: What is the example of the Early Modern English ( [x] → /f/) /ɔf/?
SQL: SELECT "example" FROM "diphthongs" WHERE "early_modern_english"='( [x] → /f/) /ɔf/';