6. The method of claim 1 , wherein the set of validated contextual rules (a) take as inputs a value and a value context and (b) output an attribute label for the value.
6. The method of claim 1 , wherein the set of validated contextual rules (a) take as inputs a value and a value context and (b) output an attribute label for the value. 7. The method of claim 6 , wherein the value context includes words adjacent the value.