@prefix : <foo#> .
    
     @forAll :x,
                :y,
                :z .
    
    :grass     :color :blue;
         :is :relaxing;
         :sounds :quiet .
    
    :sky     :color :blue;
         :is :relaxing;
         :sounds :quiet .
    {
        :x     :color :blue .
        
        }     => {:x     :is :relaxing .
        } .
    {
        :x     :sounds :quiet .
        
        }     => {:x     :is :relaxing .
        } .