-ol c-- ccc cch cck ccl cco ccv ch- chc chh chk chl cho chv ckc ckh cko cl- clc clh clk cll clo clv co- coc coh cok col coo cov cvc cvh cvk cvl cvo cvv hcc hch hck hcl hco hcv hhc hhh hhk hhl hho hhv hkh hkk hkl hko hlc hlh hll hlo hlv hoc hoh hok hol hoo hov hv- hvc hvk hvl hvo hvv kcc kch kck kcl khh khk kho khv kkc kkh kkk kkl kkv kl- klc klh klo klv koc koh kok kol koo kvh kvk kvo kvv lcc lch lck lcl lco lcv lhc lhh lhk lho lhv lkh lkl llc llk lll llo llv loc loh lok lol loo lov lvc lvh lvl lvv oc- occ och ock ocl oco ocv ohc ohh ohl oho okc okk okl oko olc olk oll olo oo- ooc ooh ook ool ooo oov ov- ovc ovh ovl ovo ovv vcc vch vcl vco vh- vhc vho vl- vlc vlk vll vlo vlv voc voh vok vol voo vov vvc vvo vvv