To present a plurality of functions that is a candidate for implementation based on an input character string, and to support a user in selecting a function.
Server device 10 acquires input information input into terminal device 20 (SA1 to SA3), recognizes the input information with reference to a dictionary file, the dictionary file serving as a voice-recognition dictionary describing an identifier representing a category, the category being determined based on a meaning of a registered character string, and specifies an input character string and the first identifier, the first identifier representing a category of a registered character string included in the input character string (SA5). Server device 10 transmits the specified character string and first identifier to terminal device 20 (SA6). Terminal device 20 selects, with reference a function-selection file describing a correspondence between the first identifier and a category to which a function to be presented belongs, a category to which a function corresponding to the first identifier belongs (SA7 to SA9), and presents a plurality of functions belonging to the selected category in a predetermined presenting manner (for example, prior to the other functions) (SA10).