What is the American sound that has a 17th century equivalent of ɔ?
CREATE TABLE "initial_unstressed_syllables" (
  "semi_closed_initial_unstressed_vowels" text,
  "17th_c" text,
  "american" text,
  "australian" text,
  "examples" text
);
SELECT "american" FROM "initial_unstressed_syllables" WHERE "17th_c"='ɔ';