rdl rdo rdr rds rdt re- rea red ree ref reh rei rel reo rer res ret rfa rfd rfe rff rfh rfi rfl rfo rfr rfs rft rh- rha rhd rhe rhf rhh rhi rhl rho rhr rhs rht ria rid rie rif rih rii ril rio rir ris rit rla rld rle rlf rlh rli rll rlo rlr rls rlt roa rod roe rof roh roi rol roo ror ros rot rra rrd rrf rrh rri rrl rrr rrs rrt rsa rsd rse rsf rsh rsi rsl rso rsr rss rst rta rtd rte rtf rti rtl rto rtr rts rtt saa sad sae saf sah sai sal sao sar sas sat sda sdd sde sdf sdh sdi sdl sdo sdr sds sdt se- sea sed see sef seh sei sel seo ser ses set sfa sfd sfe sff sfh sfi sfl sfo sfr sfs sft sh- sha shd she shf shh shi shl sho shr shs sht sia sid sie sif sih sii sil sio sir sis sit sla sld sle slf slh sli sll slo slr sls slt soa sod soe sof soh soi sol soo sor sos sot sr- sra srd sre srf srh sri srl sro srr srs srt ss- ssa ssd sse ssf ssh ssi ssl sso ssr sss sst sta std ste stf sth sti stl sto str sts stt taa tad tae taf tah tai tal tao tar tas tat tda tdd tde tdf tdh tdi tdl tdo tdr tds tdt te- tea ted tee tef teh tei tel teo ter tes tet tfa tfd tfe tff tfh tfi tfl tfo tfr tfs tft th- tha thd the thf thh thi thl tho thr ths tht tia tid tie tif tih tii til tio tir tis tit tla tld tle tlf tlh tli tll tlo tlr tls tlt to- toa tod toe tof toh toi tol too tor tos tot tra trd tre trf trh tri trl tro trr trs trt tsa tsd tse tsf tsh tsi tsl tso tsr tss tst tta ttd tte ttf tth tti ttl tto ttr tts ttt