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SELECT DISTINCT CITY FROM STATION
WHERE SUBSTR(CITY,1,1) NOT IN ('A','E','I','O','U','a','e','i','o','u')
OR SUBSTR(CITY,-1) NOT IN ('A','E','I','O','U','a','e','i','o','u'); - ORACLE SQL
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Weather Observation Station 11
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SELECT DISTINCT CITY FROM STATION WHERE SUBSTR(CITY,1,1) NOT IN ('A','E','I','O','U','a','e','i','o','u') OR SUBSTR(CITY,-1) NOT IN ('A','E','I','O','U','a','e','i','o','u'); - ORACLE SQL