rao rar ras rat rda rdd rde rdf rdi rdl rdn rdo rdr rds rdt re- rea red ree ref rei rel ren reo rer res ret rfa rfd rfe rff rfi rfl rfn rfo rfr rfs rft ria rid rie rif rii ril rin rio rir ris rit rla rld rle rlf rli rll rln rlo rlr rls rlt rna rnd rni rnn rno rnr rns rnt roa rod roe rof roi rol ron roo ror ros rot rra rrd rrf rri rrl rrn rrr rrs rrt rsa rsd rse rsf rsi rsl rsn rso rsr rss rst rta rtd rte rtf rti rtl rtn rto rtr rts rtt saa sad sae saf sai sal san sao sar sas sat sda sdd sde sdf sdi sdl sdn sdo sdr sds sdt se- sea sed see sef sei sel sen seo ser ses set sfa sfd sfe sff sfi sfl sfn sfo sfr sfs sft sia sid sie sif sii sil sin sio sir sis sit sla sld sle slf sli sll sln slo slr sls slt sna snd sne snf sni snl snn sno snr sns snt soa sod soe sof soi sol son soo sor sos sot sr- sra srd sre srf sri srl srn sro srr srs srt ss- ssa ssd sse ssf ssi ssl ssn sso ssr sss sst sta std ste stf sti stl stn sto str sts stt taa tad tae taf tai tal tan tao tar tas tat tda tdd tde tdf tdi tdl tdn tdo tdr tds tdt te- tea ted tee tef tei tel ten teo ter tes tet tfa tfd tfe tff tfi tfl tfn tfo tfr tfs tft tia tid tie tif tii til tin tio tir tis tit tla tld tle tlf tli tll tln tlo tlr tls tlt tna tnd tne tnf tni tnl tnn tno tnr tns tnt to- toa tod toe tof toi tol ton too tor tos tot tra trd tre trf tri trl trn tro trr trs trt tsa tsd tse tsf tsi tsl tsn tso tsr tss tst tta ttd tte ttf tti ttl ttn tto ttr tts ttt