rdl rdo rdp rdr rds rdt re- rec red ree reh rei rel reo rep rer res ret rh- rhc rhd rhe rhh rhi rhl rho rhp rhr rhs rht ric rid rie rih rii ril rio rip rir ris rit rlc rld rle rlh rli rll rlo rlp rlr rls rlt roc rod roe roh roi rol roo rop ror ros rot rpc rpd rpe rph rpi rpl rpo rpp rpr rps rpt rrc rrd rrh rri rrl rrp rrr rrs rrt rsc rsd rse rsh rsi rsl rso rsp rsr rss rst rtc rtd rte rti rtl rto rtp rtr rts rtt scc scd sce sch sci scl sco scp scr scs sct sdc sdd sde sdh sdi sdl sdo sdp sdr sds sdt se- sec sed see seh sei sel seo sep ser ses set sh- shc shd she shh shi shl sho shp shr shs sht sic sid sie sih sii sil sio sip sir sis sit slc sld sle slh sli sll slo slp slr sls slt soc sod soe soh soi sol soo sop sor sos sot spc spd spe sph spi spl spo spp spr sps spt sr- src srd sre srh sri srl sro srp srr srs srt ss- ssc ssd sse ssh ssi ssl sso ssp ssr sss sst stc std ste sth sti stl sto stp str sts stt tcc tcd tce tch tci tcl tco tcp tcr tcs tct tdc tdd tde tdh tdi tdl tdo tdp tdr tds tdt te- tec ted tee teh tei tel teo tep ter tes tet th- thc thd the thh thi thl tho thp thr ths tht tic tid tie tih tii til tio tip tir tis tit tlc tld tle tlh tli tll tlo tlp tlr tls tlt to- toc tod toe toh toi tol too top tor tos tot tpc tpd tpe tph tpi tpl tpo tpp tpr tps tpt trc trd tre trh tri trl tro trp trr trs trt tsc tsd tse tsh tsi tsl tso tsp tsr tss tst ttc ttd tte tth tti ttl tto ttp ttr tts ttt