user: Question: Name the US R&B for 1981
Columns: ['Year', 'Single', 'U.S. Hot 100', 'U.S. Dance', 'U.S. R&B', 'Album']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1981.0, '"Don\'t Stop the Train"', '—', '20', '—', 'Move Closer']
SQL:

assistant: SELECT "U.S. R&B" FROM "Table" WHERE "Year" = 1981.0;