rdo rdp rdr rds rdt re- rea red ree ref reh rel reo rep rer res ret rfa rfd rfe rff rfh rfl rfo rfp rfr rfs rft rh- rha rhd rhe rhf rhh rhl rho rhp rhr rhs rht rla rld rle rlf rlh rll rlo rlp rlr rls rlt roa rod roe rof roh rol roo rop ror ros rot rpa rpd rpe rpf rph rpl rpo rpp rpr rps rpt rra rrd rrf rrh rrl rrp rrr rrs rrt rsa rsd rse rsf rsh rsl rso rsp rsr rss rst rta rtd rte rtf rtl rto rtp rtr rts rtt saa sad sae saf sah sal sao sap sar sas sat sda sdd sde sdf sdh sdl sdo sdp sdr sds sdt se- sea sed see sef seh sel seo sep ser ses set sfa sfd sfe sff sfh sfl sfo sfp sfr sfs sft sh- sha shd she shf shh shl sho shp shr shs sht sla sld sle slf slh sll slo slp slr sls slt soa sod soe sof soh sol soo sop sor sos sot spa spd spe spf sph spl spo spp spr sps spt sr- sra srd sre srf srh srl sro srp srr srs srt ss- ssa ssd sse ssf ssh ssl sso ssp ssr sss sst sta std ste stf sth stl sto stp str sts stt taa tad tae taf tah tal tao tap tar tas tat tda tdd tde tdf tdh tdl tdo tdp tdr tds tdt te- tea ted tee tef teh tel teo tep ter tes tet tfa tfd tfe tff tfh tfl tfo tfp tfr tfs tft th- tha thd the thf thh thl tho thp thr ths tht tla tld tle tlf tlh tll tlo tlp tlr tls tlt to- toa tod toe tof toh tol too top tor tos tot tpa tpd tpe tpf tph tpl tpo tpp tpr tps tpt tra trd tre trf trh trl tro trp trr trs trt tsa tsd tse tsf tsh tsl tso tsp tsr tss tst tta ttd tte ttf tth ttl tto ttp ttr tts ttt