A navigation system and method uses loops as opposed to existing search techniques to more expeditiously find routes on a map from a starting point to a destination. In operation, the invention provides for the identification of a call center transaction selection from a natural language user utterance and the invocation of one or more scripts operable to route the user to a call center service agent configured to service the selected transaction. A decoder component can subsequently enable local word wheeling andor local web search by blending k-best answers from local language models of varying demographic granularity that match users demographics. Each flange may be substantially flat across its width in a direction parallel to said axis so as to substantially evenly distribute across the width a resiliently biased downward force applied to the workpieces passing under the roll.