ris rit rkb rkc rkg rkk rks rkt rna rnb rnc rng rnh rni rnn rnr rns rnt rra rrb rrc rrg rrh rri rrk rrn rrr rrs rrt rsa rsb rsc rsg rsh rsi rsk rsn rsr rss rst rta rtb rtc rtg rti rtk rtn rtr rts rtt saa sab sac sag sah sai sak san sar sas sat sba sbb sbc sbg sbh sbi sbk sbn sbr sbs sbt sca scb scc scg sch sci sck scn scr scs sct sga sgb sgc sgg sgh sgi sgk sgn sgr sgs sgt sh- sha shb shc shg shh shi shk shn shr shs sht sia sib sic sig sih sii sik sin sir sis sit sk- ska skb skc skg skh ski skk skr sks skt sna snb snc sng sni snk snn snr sns snt sr- sra srb src srg srh sri srk srn srr srs srt ss- ssa ssb ssc ssg ssh ssi ssk ssn ssr sss sst sta stb stc stg sth sti stk stn str sts stt taa tab tac tag tah tai tak tan tar tas tat tba tbb tbc tbg tbh tbi tbk tbn tbr tbs tbt tca tcb tcc tcg tch tci tck tcn tcr tcs tct tga tgb tgc tgg tgh tgi tgk tgn tgr tgs tgt th- tha thb thc thg thh thi thk thn thr ths tht tia tib tic tig tih tii tik tin tir tis tit tka tkb tkc tkg tkk tkr tks tkt tna tnb tnc tng tnh tni tnk tnn tnr tns tnt tra trb trc trg trh tri trk trn trr trs trt tsa tsb tsc tsg tsh tsi tsk tsn tsr tss tst tta ttb ttc ttg tth tti ttk ttn ttr tts ttt