ooc oog ooh ooi ook ool oom oon ooo oos oot os- osc osg osh osi osk osl osm osn oso oss ost ot- otc otg oth oti otk otl otm otn oto ots ott scc scg sch sci sck scl scm scn sco scs sct sgc sgg sgh sgi sgk sgl sgm sgn sgo sgs sgt sh- shc shg shh shi shk shl shm shn sho shs sht sic sig sih sii sik sil sim sin sio sis sit sk- skc skg skh ski skk skl skm sko sks skt slc slg slh sli slk sll slm sln slo sls slt smc smg smh smi smk sml smm smn smo sms smt snc sng sni snk snl snm snn sno sns snt soc sog soh soi sok sol som son soo sos sot ss- ssc ssg ssh ssi ssk ssl ssm ssn sso sss sst stc stg sth sti stk stl stm stn sto sts stt tcc tcg tch tci tck tcl tcm tcn tco tcs tct tgc tgg tgh tgi tgk tgl tgm tgn tgo tgs tgt th- thc thg thh thi thk thl thm thn tho ths tht tic tig tih tii tik til tim tin tio tis tit tkc tkg tkk tkl tkm tko tks tkt tlc tlg tlh tli tlk tll tlm tln tlo tls tlt tmc tmg tmh tmi tmk tml tmm tmn tmo tms tmt tnc tng tnh tni tnk tnl tnm tnn tno tns tnt to- toc tog toh toi tok tol tom ton too tos tot tsc tsg tsh tsi tsk tsl tsm tsn tso tss tst ttc ttg tth tti ttk ttl ttm ttn tto tts ttt