rke rkg rkk rko rkp rks rkt rna rnd rng rnn rno rnp rnr rns rnt roa rod roe rog rok ron roo rop ror ros rot rpa rpd rpe rpg rpk rpn rpo rpp rpr rps rpt rra rrd rrg rrk rrn rrp rrr rrs rrt rsa rsd rse rsg rsk rsn rso rsp rsr rss rst rta rtd rte rtg rtk rtn rto rtp rtr rts rtt saa sad sae sag sak san sao sap sar sas sat sda sdd sde sdg sdk sdn sdo sdp sdr sds sdt se- sea sed see seg sek sen seo sep ser ses set sga sgd sge sgg sgk sgn sgo sgp sgr sgs sgt sk- ska skd ske skg skk sko skp skr sks skt sna snd sne sng snk snn sno snp snr sns snt soa sod soe sog sok son soo sop sor sos sot spa spd spe spg spk spn spo spp spr sps spt sr- sra srd sre srg srk srn sro srp srr srs srt ss- ssa ssd sse ssg ssk ssn sso ssp ssr sss sst sta std ste stg stk stn sto stp str sts stt taa tad tae tag tak tan tao tap tar tas tat tda tdd tde tdg tdk tdn tdo tdp tdr tds tdt te- tea ted tee teg tek ten teo tep ter tes tet tga tge tgg tgk tgn tgo tgp tgr tgs tgt tka tke tkg tkk tko tkp tkr tks tkt tna tnd tne tng tnk tnn tno tnp tnr tns tnt to- toa tod toe tog tok ton too top tor tos tot tpa tpd tpe tpg tpk tpn tpo tpp tpr tps tpt tra trd tre trg trk trn tro trp trr trs trt tsa tsd tse tsg tsk tsn tso tsp tsr tss tst tta ttd tte ttg ttk ttn tto ttp ttr tts ttt