It seems like you're asking for a SQL query. Here's how you can do it:

```sql
SELECT DISTINCT CITY
FROM STATION
WHERE LOWER(SUBSTR(CITY, 1, 1)) IN ('a', 'e', 'i', 'o', 'u');
```

Here's the step by step explanation:

1. `SELECT DISTINCT CITY`: This part of the query will select all unique city names from the table. The `DISTINCT` keyword ensures that there are no duplicate city names in the result.

2. `FROM STATION`: This part of the query specifies the table we are selecting data from, which is the `STATION` table in this case.

3. `WHERE LOWER(SUBSTR(CITY, 1, 1)) IN ('a', 'e', 'i', 'o', 'u')`: This is the condition for selecting the data. The `SUBSTR(CITY, 1, 1)` function gets the first character of the city name. The `LOWER` function ensures that the comparison is case-insensitive. The `IN ('a', 'e', 'i', 'o', 'u')` part checks if the first character of the city name is a vowel. If it is, the city name is included in the result.

Question

It seems like you're asking for a SQL query. Here's how you can do it:

```sql
SELECT DISTINCT CITY 
FROM STATION 
WHERE LOWER(SUBSTR(CITY, 1, 1)) IN ('a', 'e', 'i', 'o', 'u');
```

Here's the step by step explanation:

1. `SELECT DISTINCT CITY`: This part of the query will select all unique city names from the table. The `DISTINCT` keyword ensures that there are no duplicate city names in the result.

2. `FROM STATION`: This part of the query specifies the table we are selecting data from, which is the `STATION` table in this case.

3. `WHERE LOWER(SUBSTR(CITY, 1, 1)) IN ('a', 'e', 'i', 'o', 'u')`: This is the condition for selecting the data. The `SUBSTR(CITY, 1, 1)` function gets the first character of the city name. The `LOWER` function ensures that the comparison is case-insensitive. The `IN ('a', 'e', 'i', 'o', 'u')` part checks if the first character of the city name is a vowel. If it is, the city name is included in the result.

Knowee AI · Accepted Answer

It seems like you're asking for a SQL query. Here's how you can do it:

```sql
SELECT DISTINCT CITY 
FROM STATION 
WHERE LOWER(SUBSTR(CITY, 1, 1)) IN ('a', 'e', 'i', 'o', 'u');
```

Here's the step by step explanation:

1. `SELECT DISTINCT CITY`: This part of the query will select all unique city names from the table. The `DISTINCT` keyword ensures that there are no duplicate city names in the result.

2. `FROM STATION`: This part of the query specifies the table we are selecting data from, which is the `STATION` table in this case.

3. `WHERE LOWER(SUBSTR(CITY, 1, 1)) IN ('a', 'e', 'i', 'o', 'u')`: This is the condition for selecting the data. The `SUBSTR(CITY, 1, 1)` function gets the first character of the city name. The `LOWER` function ensures that the comparison is case-insensitive. The `IN ('a', 'e', 'i', 'o', 'u')` part checks if the first character of the city name is a vowel. If it is, the city name is included in the result.

Query the list of CITY names starting with vowels (i.e., a, e, i, o, or u) from STATION. Your result cannot contain duplicates.Input Format

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