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	Yukio Hayashi
	Address:	Japan Advanced Institute of Science and Technology
			School of Knowledge Science
			1-1 Asahi-dai, Tatsunokuchi, Ishikawa 923-12 Japan
	E-mail: 	yhayashi@jaist.ac.jp
	Phone:  	+81-761-51-1736
	Fax:    	+81-761-51-1149
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