rie rig rii rik rin rip rir ris rit rke rkg rkk rkp rks rkt rna rnd rng rni rnn rnp rnr rns rnt rpa rpd rpe rpg rpi rpk rpn rpp rpr rps rpt rra rrd rrg rri rrk rrn rrp rrr rrs rrt rsa rsd rse rsg rsi rsk rsn rsp rsr rss rst rta rtd rte rtg rti rtk rtn rtp rtr rts rtt saa sad sae sag sai sak san sap sar sas sat sda sdd sde sdg sdi sdk sdn sdp sdr sds sdt se- sea sed see seg sei sek sen sep ser ses set sga sgd sge sgg sgi sgk sgn sgp sgr sgs sgt sia sid sie sig sii sik sin sip sir sis sit sk- ska skd ske skg ski skk skp skr sks skt sna snd sne sng sni snk snn snp snr sns snt spa spd spe spg spi spk spn spp spr sps spt sr- sra srd sre srg sri srk srn srp srr srs srt ss- ssa ssd sse ssg ssi ssk ssn ssp ssr sss sst sta std ste stg sti stk stn stp str sts stt taa tad tae tag tai tak tan tap tar tas tat tda tdd tde tdg tdi tdk tdn tdp tdr tds tdt te- tea ted tee teg tei tek ten tep ter tes tet tga tge tgg tgi tgk tgn tgp tgr tgs tgt tia tid tie tig tii tik tin tip tir tis tit tka tke tkg tkk tkp tkr tks tkt tna tnd tne tng tni tnk tnn tnp tnr tns tnt tpa tpd tpe tpg tpi tpk tpn tpp tpr tps tpt tra trd tre trg tri trk trn trp trr trs trt tsa tsd tse tsg tsi tsk tsn tsp tsr tss tst tta ttd tte ttg tti ttk ttn ttp ttr tts ttt