PQ
w
`
w()

PQ|Q
w()
`
w()

PS
w(k)
`k˓cw`
nw()

WQ
w
`
˓cԌ

WR
w(k)
`
˓cԌ

YOT
Yaw()
`YawEځ`
w

nTT
nw()
`˓cwk`