ԂOP
ԉHw()
`≺`
Ԓˉw
ԂOQ
ԉHw()
`≺`
w(k)
ԂOR
ԉHw()
`≺`
w
ԂWP
u≺
`
Ԓˉw
ԂWQ
u≺
`
w(k)