A method and apparatus for building a modeling tool that includes a meta model that has a semantic registry and a meta data manager, an objectproperty interface, and an objectproperty factory registry. In case that a user inputs a game start signal through a key signal input unit, a controller reads a certain song from a song data storage unit, outputs the read song to a reproducingoutputting unit, reads game data from a game data storage unit, and controls a character display driving unit so that the game data moves along a certain locus on a character display unit. The cleaning member contacts a surface of the machine tool to dislodge contaminants. Each sheet also includes a second face sharing the periphery and the first, second, third, and fourth edges of the first printable face, and a first machine-readable mark located on one of the first and second faces and including a plurality of data areas of different densities, with the combination of densities in the data areas being unique to each sheet. Further, the gaming device comprises of-at least one reset mechanism connected to the processor capable of resetting the gaming device for the generation of another gaming experience while a player is operating the device. The method further includes removing part of the patterned upper portion of the semiconductor substrate by performing etching using the patterned mask film as a mask.