http://repository.seinan-gu.ac.jp/bitstream/handle/123456789/1860/is-v34n2-p411-455-oni.pdf?sequence=1
ʂ̃TCgɃWv悤ƂĂ܂BXΏL̃NNbNĂ
UPLIFTōLȂő̌܂傤IKȉ{Ct܂I