Structured t Unstructured data Key idea: optimal parse of (unstructured offer wrt specification Semantic parse of offers tagging plausible parse Combination of tags such that each attribute has distinct value roduct line brand mode Panasonic Lumix DMC-FX07 digital camera 7.2 megapixel, 2.5",3.6X, LCD monitor resolution zoom diagonal, display type height, width 16Structured + Unstructured Data  Key idea: optimal parse of (unstructured) offer wrt specification  Semantic parse of offers: tagging, plausible parse – Combination of tags such that each attribute has distinct value 16 Panasonic Lumix DMC-FX07 digital camera 7.2 megapixel, 2.5”, 3.6x, LCD monitor brand product line model resolution diagonal, height, width zoom display type