report.columns = {
                   <
                     title : `STR_TITLE
                     field-info : title-info
                   >
                   <
                     title : `STR_PRICE
                     field-info : price-info
                   >
                   <
                     title : `STR_COLOR
                     field-info : color-info
                   >
                 }
' title-info -- explain product.title title-info,
  price-info -- explain product.price price-info,
  color-info -- explain product.color color-info