5. The method as claimed in claim 1 wherein generating the route description includes generating an expansion based on the context for customizing the route description for the geographic region.
1. A method of operation of a content delivery system comprising: determining a context for identifying a device within a geographic region; identifying a feature including a key feature and a contrastive feature of a candidate route; generating a route description based on the feature with a control unit; and generating a prompt based on the context for adding or removing the feature from the route description for delivering on the device.