pts ptt ra- raa rac rad rae ral ram rao rap rar ras rat rca rcc rcd rce rcl rcm rco rcp rcr rcs rct rda rdc rdd rde rdl rdm rdo rdp rdr rds rdt re- rea rec red ree rel rem reo rep rer res ret rla rlc rld rle rll rlm rlo rlp rlr rls rlt rma rmc rmd rme rml rmm rmo rmp rmr rms rmt roa roc rod roe rol rom roo rop ror ros rot rpa rpc rpd rpe rpl rpm rpo rpp rpr rps rpt rra rrc rrd rrl rrm rrp rrr rrs rrt rsa rsc rsd rse rsl rsm rso rsp rsr rss rst rta rtc rtd rte rtl rtm rto rtp rtr rts rtt saa sac sad sae sal sam sao sap sar sas sat sca scc scd sce scl scm sco scp scr scs sct sda sdc sdd sde sdl sdm sdo sdp sdr sds sdt se- sea sec sed see sel sem seo sep ser ses set sla slc sld sle sll slm slo slp slr sls slt sma smc smd sme sml smm smo smp smr sms smt soa soc sod soe sol som soo sop sor sos sot spa spc spd spe spl spm spo spp spr sps spt sr- sra src srd sre srl srm sro srp srr srs srt ss- ssa ssc ssd sse ssl ssm sso ssp ssr sss sst sta stc std ste stl stm sto stp str sts stt taa tac tad tae tal tam tao tap tar tas tat tca tcc tcd tce tcl tcm tco tcp tcr tcs tct tda tdc tdd tde tdl tdm tdo tdp tdr tds tdt te- tea tec ted tee tel tem teo tep ter tes tet tla tlc tld tle tll tlm tlo tlp tlr tls tlt tma tmc tmd tme tml tmm tmo tmp tmr tms tmt to- toa toc tod toe tol tom too top tor tos tot tpa tpc tpd tpe tpl tpm tpo tpp tpr tps tpt tra trc trd tre trl trm tro trp trr trs trt tsa tsc tsd tse tsl tsm tso tsp tsr tss tst tta ttc ttd tte ttl ttm tto ttp ttr tts ttt