-ol kkk kkl kkn kks kl- klo kls kn- knk knl knn kno kok kol kon koo kos ksk ksl ksn kso kss lkl lks llk lll lln llo lls lnk lnl lnn lno lns lok lol lon loo los lsk lsl lsn lso lss nkk nkn nko nks nlk nll nln nlo nls nnk nnl nnn nno nns no- nok nol non noo nos nsk nsl nsn nso nss okk okl oko oks olk oll oln olo ols on- onk onl onn ono ons oo- ook ool oon ooo oos os- osk osl osn oso oss sk- skk skl sko sks slk sll sln slo sls snk snl snn sno sns sok sol son soo sos ss- ssk ssl ssn sso sss