A composition including a polymer, the polymer having a non-dissociative functional group that interacts with a plating catalyst or a precursor thereof, a radical polymerizable group, and an ionic polar group; a method of producing a metal pattern material using the same: and a metal pattern material produced by the method. More specifically, a bias ratio at a partial screen display time is set not higher than an optimal bias value, and a maximum amplitude value of an applied voltage waveform at the partial screen display time is smaller than that at the whole screen display time. The water-insoluble component can be active agent, such as fragrance andor an insecticide. A face of the annular projection in direction axially of one end of tubular member is formed so as to extend outwardly and inclinedly with respect to the axial direction of the tubular member form one end toward the other end thereof. Herein, the antenna is substantially perpendicular to the main substrate. Users and authors of the system interface with the knowledge database through a graphical interface to author dialogues and to create expert conversations as threads traversing the node in the dialogues.