by-TW
start-TW
fw-end
QZ-end
JH-by
ka-start
ka-by
end-JH
QZ-cv
vg-TI
by-fw
QZ-by
JH-ka
JH-vg
vg-fw
TW-cv
QZ-vg
ka-TW
ka-QZ
JH-fw
vg-hu
cv-start
by-cv
ka-cv