25. A product summary generator for automatically generating a naturally reading narrative product summary including assertions about a specific product selected by a user, said product summary generator comprising: a processor coupled to a memory device configured to execute: a product attribute module adapted to determine at least one attribute associated with said specific product, said attribute including at least one of an attribute name, an attribute value, and an attribute unit; an alternative product selection module adapted to select an alternative product based on said at least one attribute; and a summary generation module adapted to generate a naturally reading narrative by combining said at least one attribute and said alternative product with one or more retrieved assertion models so that said narrative includes a recommendation of said alternative product.
25. A product summary generator for automatically generating a naturally reading narrative product summary including assertions about a specific product selected by a user, said product summary generator comprising: a processor coupled to a memory device configured to execute: a product attribute module adapted to determine at least one attribute associated with said specific product, said attribute including at least one of an attribute name, an attribute value, and an attribute unit; an alternative product selection module adapted to select an alternative product based on said at least one attribute; and a summary generation module adapted to generate a naturally reading narrative by combining said at least one attribute and said alternative product with one or more retrieved assertion models so that said narrative includes a recommendation of said alternative product. 29. The product summary generator of claim 25 , wherein said narrative includes at least one sentence recommending said alternative product.