Table:
0
A
B
C
D
E
F
1
Initial-syllable open/semi-open unstressed vowels
17th c.
American
British
Australian
Examples
2
a /ə/
ɐ
ə
ə
ə
papyrus, placebo, saliva, basilica
3
e /ɨ/
e
ɪ, ə
ɪ, ə
ɪ, ə
December, thesaurus
4
æ /ɨ/
e
ɪ, ə
ɪ, ə
ɪ, ə
Mæcenas, pæninsula, phænomenon
5
i /aɪ, ɨ/
ɛi, ɪ
ai, ɪ, ə
aɪ, ɪ, ə
ɑe, ɪ, ə
criteria, tribunal, minutiæ, cicada
6
y /aɪ, ɨ/
ɛi, ɪ
ai, ɪ, ə
aɪ, ɪ, ə
ɑe, ɪ, ə
lyceum, psychosis, synopsis, chrysanthemum
7
o /ɵ/
o
ɞu, ɞ, ə
əʊ, ə
əʉ, ə
November, rotunda, colossus, proscenium

Questions and formulas:
Question: What is 17th c., when Initial-Syllable Open/Semi-Open Unstressed Vowels is "o /ɵ/"?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="o /ɵ/"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F7,A2:A7="o /ɵ/"),2))
Level: medium
Question: What is British, when Examples is "November, rotunda, colossus, proscenium"?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1="november, rotunda, colossus, proscenium"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F7,F2:F7="november, rotunda, colossus, proscenium"),4))
Level: medium
Question: What is American, when British is "ɪ, ə", and when Initial-Syllable Open/Semi-Open Unstressed Vowels is "æ /ɨ/"?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(D1="ɪ, ə")*(A1="æ /ɨ/")),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F7,(D2:D7="ɪ, ə")*(A2:A7="æ /ɨ/")),3))
Level: medium
Question: What is Initial-Syllable Open/Semi-Open Unstresses Vowels, when Australian is "ə"?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,E1="ə"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F7,E2:E7="ə"),1))
Level: medium
Question: What is Australian, when British is "aɪ, ɪ, ə"?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="aɪ, ɪ, ə"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F7,D2:D7="aɪ, ɪ, ə"),5))
Level: medium
Question: What is American, when Initial-Syllable Open/Semi-Open Unstressed Vowels is "y /aɪ, ɨ/"?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="y /aɪ, ɨ/"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F7,A2:A7="y /aɪ, ɨ/"),3))
Level: medium