u≺

ԂOQ
ԉHw()
`≺`
w(k)

ԂOR
ԉHw()
`≺`
ԏ

ԂOV
ԉHw()
`

ԂWQ
u≺
`
w(k)

ԂWR
ԉHw()
`
≺꒚