The `camp_site` subclass is assigned to the `campsite` class by an earlier statement"
```sql
WHEN subclass IN ('camp_site','caravan_site') THEN 'campsite'
```
The `camp_site` subclass is assigned to the `campsite` class by an earlier statement"
```sql
WHEN subclass IN ('camp_site','caravan_site') THEN 'campsite'
```