1. An information processing system comprising: one or more processors configured to: receive an input image captured by an image sensor; analyze the input image to identify a difference between one or more physical appearance features of a subject depicted in the input image and one or more corresponding physical appearance features of a model subject; select one or more phrases from a plurality of phrase candidates based on the identified difference between the one or more physical appearance features of the subject and the one or more corresponding physical appearance features of the model subject; detect a location of the information processing system; and output, to an output device, at least one of the one or more selected phrases using a particular dialect associated with the detected location, wherein the particular dialect is in formal language of the particular dialect in an event the detected location corresponds to a public space in a reference map data.