X̃z[QP
TP
Vˉw
`
w
(PS)
TR
Vˉw
X̃z[QP
(PS)
Vˉw
`eX[ˁ`
w
(PS`)
W
w
`
cnz
(PQ)
X
w
oXē
(PQ)
Xo
w
(PQ)