-ol -th hhh hhk hhl hho hhr hht hkh hkk hkl hko hkr hkt hlh hll hlo hlr hlt hoh hok hol hoo hor hot hr- hrh hrk hrl hro hrr hrt hth htk htl hto htr htt k-t khh khk kho khr kkh kkk kkl kkr kkt kl- klh klo klr klt koh kok kol koo kor kot krk krl kro krr krt kth ktk ktl kto ktr ktt lhh lhk lho lhr lht lkh lkl lkr lkt llk lll llo llr llt loh lok lol loo lor lot lrh lrk lro lrr lrt lth ltk ltl lto ltr ltt ohh ohl oho ohr oht okk okl oko okr olk oll olo olt oo- ooh ook ool ooo oor oot or- orh ork orl oro orr ort ot- oth otk otl oto otr ott rh- rhh rhl rho rhr rht rkk rko rkt rlh rll rlo rlr rlt roh rok rol roo ror rot rrh rrk rrl rrr rrt rtk rtl rto rtr rtt th- thh thk thl tho thr tht tkk tkl tko tkr tkt tlh tlk tll tlo tlr tlt to- toh tok tol too tor tot trh trk trl tro trr trt tth ttk ttl tto ttr ttt