yi3 --> yi1
sp6 --> yi2
sp7 --> yi3
ci4 --> yi4
fgh --> dp1
ds1 --> dp2
sgs --> dp3
sp3 --> dp4
vd2 --> ds1
yi1 --> ds2
vob2 --> vd1
dp1 --> vd2
sp8 --> vd3
csecret --> vd4
sw4 --> vs1
soda --> vs2
ci1 --> vs3
sw3 --> cba
vob1 --> soda
ci5 --> cookie
ds2 --> bb1
yi2 --> bb2
dgh --> foi1
sw1 --> foi2
dsh --> foi3
foi3 --> foi4
vd3 --> fsecret
vob3 --> ci1
foi1 --> ci2
sw2 --> ci3
fsecret --> ci4
sp4 --> ci5
cookie --> csecret
sp5 --> vob1
foi4 --> vob2
sp1 --> vob3
ci3 --> vob4
c7 --> c1
c1 --> c2
c2 --> c3
c5 --> c4
c3 --> c5
c4 --> c6
c6 --> c7
bfort --> vfort
vfort --> ffort
ffort --> cfort
cfort --> bfort
cba --> dgh
vs1 --> dsh
cgh --> vgh
ci2 --> fgh
dp4 --> cgh
yi4 --> sgs
vd1 --> bgh
dp2 --> sw1
sw5 --> sw2
bgh --> sw3
vob4 --> sw4
foi2 --> sw5
vd4 --> sp1
vs3 --> sp2
bb2 --> sp3
dp3 --> sp4
sp2 --> sp5
vs2 --> sp6
vgh --> sp7
bb1 --> sp8
bswitch --> yswitch
rswitch --> gswitch
yswitch --> rswitch
gswitch --> bswitch