| http://www.w3.org/ns/prov#value | - In some embodiments, at 206 a chart including comparisons of the various features of the items selected at 204 is automatically generated and/or populated from product descriptions and/or specifications available at an online store and included in the head-to-head comparison so that the user defining the head-to-head comparison does not have to supply such information, and the user creating the he
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