The present invention aims to recognize the mixture state of images. The implant can include a head component adapted to articulate with a portion of the anatomy. A spraying agent reservoir is provided and a spraying agent line is connect to the reservoir and conveys a spraying agent stream from the reservoir into the blowing air stream. When there is a keyword with the should-be-played class attached, an acquiring unit acquires at least one keyword without having the should-be-played class as a should-be-observed keyword. A gasket is positioned between the support and the platen and has a plurality of cutouts that align with the openings and the air ports.