Table: rever_sales
Columns: date
label
region
format
catalog

Question: What is the Date of Catalog 573 194-2?
SQL: SELECT "date" FROM rever_sales WHERE "catalog" = '573 194-2'

Question: What is the Label of the release in CD Maxi Format?
SQL: SELECT "label" FROM rever_sales WHERE "format" = 'cd maxi'

Question: What is the Catalog number of the CD Single?
SQL: SELECT "catalog" FROM rever_sales WHERE "format" = 'cd single'