rrf rri rrn rrr rrs rrt rsa rsd rse rsf rsi rsj rsn rso rsr rss rst rta rtd rte rtf rti rtj rtn rto rtr rts rtt saa sad sae saf sai saj san sao sar sas sat sda sdd sde sdf sdi sdj sdn sdo sdr sds sdt se- sea sed see sef sei sej sen seo ser ses set sfa sfd sfe sff sfi sfj sfn sfo sfr sfs sft sia sid sie sif sii sij sin sio sir sis sit sja sjd sje sjf sji sjj sjr sjs sjt sna snd sne snf sni snj snn sno snr sns snt soa sod soe sof soi soj son soo sor sos sot sr- sra srd sre srf sri srj srn sro srr srs srt ss- ssa ssd sse ssf ssi ssj ssn sso ssr sss sst sta std ste stf sti stj stn sto str sts stt taa tad tae taf tai taj tan tao tar tas tat tda tdd tde tdf tdi tdn tdo tdr tds tdt te- tea ted tee tef tei tej ten teo ter tes tet tfa tfd tfe tff tfi tfj tfn tfo tfr tfs tft tia tid tie tif tii tin tio tir tis tit tjd tje tjf tji tjo tjr tjs tna tnd tne tnf tni tnn tno tnr tns tnt to- toa tod toe tof toi toj ton too tor tos tot tra trd tre trf tri trn tro trr trs trt tsa tsd tse tsf tsi tsj tsn tso tsr tss tst tta ttd tte ttf tti ttn tto ttr tts ttt