ϺF(xin)I(y)W(xu)Ժ
uƼW(xu)ɽУ^(q)D
uƼW(xu)У^(q)D
RI(y)W(xu)LУ^(q)D
ɽ|ʯͻW(xu)УD^
RI(y)W(xu)D^