rog roh roi rok ron roo ror ros rot rrc rrg rrh rri rrk rrn rrr rrs rrt rsc rse rsg rsh rsi rsk rsn rso rsr rss rst rtc rte rtg rti rtk rtn rto rtr rts rtt scc sce scg sch sci sck scn sco scr scs sct se- sec see seg seh sei sek sen seo ser ses set sgc sge sgg sgh sgi sgk sgn sgo sgr sgs sgt sh- shc she shg shh shi shk shn sho shr shs sht sic sie sig sih sii sik sin sio sir sis sit sk- skc ske skg skh ski skk sko skr sks skt snc sne sng sni snk snn sno snr sns snt soc soe sog soh soi sok son soo sor sos sot sr- src sre srg srh sri srk srn sro srr srs srt ss- ssc sse ssg ssh ssi ssk ssn sso ssr sss sst stc ste stg sth sti stk stn sto str sts stt tcc tce tcg tch tci tck tcn tco tcr tcs tct te- tec tee teg teh tei tek ten teo ter tes tet tgc tge tgg tgh tgi tgk tgn tgo tgr tgs tgt th- thc the thg thh thi thk thn tho thr ths tht tic tie tig tih tii tik tin tio tir tis tit tkc tke tkg tkk tko tkr tks tkt tnc tne tng tnh tni tnk tnn tno tnr tns tnt to- toc toe tog toh toi tok ton too tor tos tot trc tre trg trh tri trk trn tro trr trs trt tsc tse tsg tsh tsi tsk tsn tso tsr tss tst ttc tte ttg tth tti ttk ttn tto ttr tts ttt