1. A short film generation/reproduction apparatus for generating a video using at least one still picture and reproducing the video, the short film generation/reproduction apparatus comprising: a database unit operable to store: a still picture group including a plurality of still pictures; a feature of each still picture included in the still picture group, the feature of each still picture being from among features identified in an expression for still pictures; a style group including a plurality of styles indicating an outline of the video; a feature of each style included in the style group, the feature of each style being from among features identified in an expression for styles; a music group including a plurality of musical pieces; and a feature of each musical piece included in the music group, the feature of each musical piece being from among features identified in an expression for music; a selection unit operable to select a selection element used to generate a portion of the video, the selection element being selected from a selection group according to a user input, the selection group being any one of the still picture group, the style group, and the music group, and the selection element selected by the selection unit being any one of a still picture of the plurality of still pictures, a style of the plurality of styles, and a musical piece of the plurality of musical pieces, only from the selection group that is any one of the still picture group, the style group, and the music group; a feature reading unit operable to read out, from the database unit, the feature of the selection element selected by the selection unit; a feature conversion unit operable to convert the feature read out by the feature reading unit into features identified in two other expressions, from among the expression for still pictures, the expression for styles, and the expression for music, the two other expressions being expressions other than the expression including the feature read out by the reading unit; a determination unit operable to automatically determine, as two other elements used to generate a portion of the video and from only two groups of the still picture group, the style group, and the music group other than the selection group, a still picture of the plurality of still pictures, a musical piece of the plurality of musical pieces, or a style of the plurality of styles, the two other elements being determined based on the features included in the two other expressions and resulting from the conversion by the feature conversion unit; and a scenario generation unit operable to generate a scenario of the video, based on the selection element selected by the selection unit and the two other elements determined by the determination unit.
26. The short film generation/reproduction apparatus according to claim 1 , wherein the short film generation/reproduction apparatus is a home server.