Question: What is 17th c., when Initial-Syllable Open/Semi-Open Unstressed Vowels is "o /ɵ/"?
SQL: SELECT "17th c." FROM "2-17798093-12" WHERE "Initial-syllable open/semi-open unstressed vowels" = 'o /ɵ/';

Question: What is British, when Examples is "November, rotunda, colossus, proscenium"?
SQL: SELECT "British" FROM "2-17798093-12" WHERE "Examples" = 'November, rotunda, colossus, proscenium';

Question: What is American, when British is "ɪ, ə", and when Initial-Syllable Open/Semi-Open Unstressed Vowels is "æ /ɨ/"?
SQL: SELECT "American" FROM "2-17798093-12" WHERE "British" = 'ɪ, ə' AND "Initial-syllable open/semi-open unstressed vowels" = 'æ /ɨ/';

Question: What is Initial-Syllable Open/Semi-Open Unstresses Vowels, when Australian is "ə"?
SQL: SELECT "Initial-syllable open/semi-open unstressed vowels" FROM "2-17798093-12" WHERE "Australian" = 'ə';

Question: What is Australian, when British is "aɪ, ɪ, ə"?
SQL: SELECT "Australian" FROM "2-17798093-12" WHERE "British" = 'aɪ, ɪ, ə';

Question: What is American, when Initial-Syllable Open/Semi-Open Unstressed Vowels is "y /aɪ, ɨ/"?
SQL: SELECT "American" FROM "2-17798093-12" WHERE "Initial-syllable open/semi-open unstressed vowels" = 'y /aɪ, ɨ/';