user: Question: Which role had a closing broadway cast of Adam Grupper?
Columns: ['Role', 'Original Broadway cast', 'Closing Broadway cast', 'Original US Tour cast', 'Original NonEquity Tour cast', 'Original São Paulo cast', 'Original Lima cast']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Gomez Addams', 'Nathan Lane', 'Roger Rees', 'Douglas Sills', 'Jesse Sharp', 'Daniel Boaventura', 'Diego Bertie']
SQL:

assistant: SELECT "Role" FROM "Table" WHERE "Closing Broadway cast" = 'Adam Grupper';