A method of converting a document from a first structure to a second structure, includes extracting data of the document to associate a field and a label in the first structure to generate a field/label association, receiving operator input indicative of associating a field/label association with one or more other field/label associations to generate a grouping, and based on the operator input and a spatial arrangement of the first structure, providing the grouping in the second structure as a natural conversational unit.