Version: 4.1
2.4 Expression Wrapper: #%expression
(#%expression expr)  | 
Produces the same result as expr. The only use of #%expression is to force the parsing of a form as an expression.
Examples:  | 
> (#%expression (+ 1 2))  | 
3  | 
> (#%expression (define x 10))  | 
eval:4:0: define: not allowed in an expression context in:  | 
(define x 10)  |