A method of operation of a navigation system includes: detecting a location reading; selecting a route having a current edge with an endpoint and a shape point; predicting a navigation instruction based on a calculation with the location reading, the shape point, and a time delay for the calculation; and displaying the navigation instruction on a device. According to one aspect, step-by-step execution of an instruction sequence is implemented where each instruction is guarded. The searching system then searches the required web site for the users by using complete comparison or fuzzy comparison and displays the content of searched homepage to users’ browsers. Near the upstream end, the main plenum includes an aft switchback, and, between the aft switchback and the downstream end, a forward arc. Then a matching scheme is selected from the defined matching scheme such that the calculated cost is the minimum among the calculated costs of the defined matching schemes. The present invention solves the problem by providing a gas barrier substrate having a base material, a planarization layer formed on the base material, and a gas barrier layer comprising a deposition film formed on the planarization layer.