pts ptt ra- raa rad rae rai ral ran rao rap rar ras rat rda rdd rde rdi rdl rdn rdo rdp rdr rds rdt re- rea red ree rei rel ren reo rep rer res ret ria rid rie rii ril rin rio rip rir ris rit rla rld rle rli rll rln rlo rlp rlr rls rlt rna rnd rni rnn rno rnp rnr rns rnt roa rod roe roi rol ron roo rop ror ros rot rpa rpd rpe rpi rpl rpn rpo rpp rpr rps rpt rra rrd rri rrl rrn rrp rrr rrs rrt rsa rsd rse rsi rsl rsn rso rsp rsr rss rst rta rtd rte rti rtl rtn rto rtp rtr rts rtt saa sad sae sai sal san sao sap sar sas sat sda sdd sde sdi sdl sdn sdo sdp sdr sds sdt se- sea sed see sei sel sen seo sep ser ses set sia sid sie sii sil sin sio sip sir sis sit sla sld sle sli sll sln slo slp slr sls slt sna snd sne sni snl snn sno snp snr sns snt soa sod soe soi sol son soo sop sor sos sot spa spd spe spi spl spn spo spp spr sps spt sr- sra srd sre sri srl srn sro srp srr srs srt ss- ssa ssd sse ssi ssl ssn sso ssp ssr sss sst sta std ste sti stl stn sto stp str sts stt taa tad tae tai tal tan tao tap tar tas tat tda tdd tde tdi tdl tdn tdo tdp tdr tds tdt te- tea ted tee tei tel ten teo tep ter tes tet tia tid tie tii til tin tio tip tir tis tit tla tld tle tli tll tln tlo tlp tlr tls tlt tna tnd tne tni tnl tnn tno tnp tnr tns tnt to- toa tod toe toi tol ton too top tor tos tot tpa tpd tpe tpi tpl tpn tpo tpp tpr tps tpt tra trd tre tri trl trn tro trp trr trs trt tsa tsd tse tsi tsl tsn tso tsp tsr tss tst tta ttd tte tti ttl ttn tto ttp ttr tts ttt