Unquoted b c d
|b|
|c|
|d|
Unquoted 'b c' d
|b c|
|d|
Unquoted "b c" d
|b c|
|d|
Quoted b c d
|b c d|
Quoted 'b c' d
|'b c' d|
Quoted "b c" d
|b c d|