[layer]

?
N...N
.
.
??_
N...N


[layer]

?
N...N
.
.
N...N


[layer]

?
Nw.eN
n   n
s   s
Nw.eN


[layer]

rrrrr
KKKKK
RRRRR
RRRRR
KKKKK
rrrrr


[layer]

?
?
rrrrr
rrrrr
?
?
