sco2 tco21 uco21q vco2 wco21
h3o21 i3o21q j3o2 k3o21 l3o21q
6tp21q 7tp2 8tp21 9tp21q aup2
vkq2 wkq21 xkq21q ykq2 zkq21
kbr21 lbr21q mbr2 nbr21 obr21q