user: Question: Which Artist has the Label of Columbia and the Standard number of COCC-72073?
Columns: ['Title', 'Type', 'Artist', 'Label', 'Standard number', 'Release date']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Grievous Rain', '8 cm single', 'Hiroyuki Takami', 'Bandai', 'BCDA-9', 'March5,1991']
SQL:

assistant: SELECT "Artist" FROM "Table" WHERE "Label" = 'Columbia' AND "Standard number" = 'COCC-72073';