-ol -th hhh hhl hhm hho hhs hht hlh hll hlm hlo hls hlt hmh hml hmm hmo hms hmt hoh hol hom hoo hos hot hsh hsl hsm hss hst hth htl htm hto hts htt lhh lho lhs lht lll llm llo lls llt lmh lml lmm lmo lms lmt loh lol lom loo los lot lsh lsl lsm lso lss lst lth ltl ltm lto lts ltt m-o mhh mhl mhm mho mhs mht mlh mll mlm mlo mls mlt mmh mml mmm mmo mms mmt moh mol mom moo mos mot msh msl msm mso mss mst mth mtl mtm mto mts mtt ohh ohl ohm oho ohs oht oll olm olo ols olt om- omh oml omm omo oms omt oo- ooh ool oom ooo oos oot os- osh osl osm oso oss ost ot- oth otl otm oto ots ott sh- shh shl shm sho shs sht slh sll slm slo sls slt smh sml smm smo sms smt soh sol som soo sos sot ss- ssh ssl ssm sso sss sst sth stl stm sto sts stt th- thh thl thm tho ths tht tlh tll tlm tlo tls tlt tmh tml tmm tmo tms tmt to- toh tol tom too tos tot tsh tsl tsm tso tss tst tth ttl ttm tto tts ttt