33. The product summary generator of claim 25 , further comprising an assertion model module adapted to retrieve said one or more assertion models, wherein said one or more section models define forms in which an assertion can be used to generate the naturally reading narrative.
33. The product summary generator of claim 25 , further comprising an assertion model module adapted to retrieve said one or more assertion models, wherein said one or more section models define forms in which an assertion can be used to generate the naturally reading narrative. 34. The product summary generator of claim 33 , wherein said assertion models comprise a plurality of assertion templates, each assertion template including a natural sentence pattern and at least one field corresponding to said at least one attribute.