ptl pto ptp ptr pts ptt ra- raa rab rac rae raf rai raj rak ral rao rap rar ras rat rba rbb rbc rbe rbf rbi rbk rbl rbo rbp rbr rbs rbt rca rcb rcc rce rcf rci rcj rcl rco rcp rcr rcs rct re- rea reb rec ree ref rei rek rel reo rep rer res ret rfa rfb rfc rfe rff rfi rfj rfk rfl rfo rfp rfr rfs rft ria rib ric rie rif rii rik ril rio rip rir ris rit rja rjc rjf rjk rjp rjr rkb rkc rke rkf rkk rko rkp rks rkt rla rlc rle rlf rli rll rlo rlp rlr rls rlt roa rob roc roe rof roi roj rok rol roo rop ror ros rot rpa rpb rpc rpe rpf rpi rpk rpl rpo rpp rpr rps rpt rra rrb rrc rrf rri rrk rrl rrp rrr rrs rrt rsa rsb rsc rse rsf rsi rsj rsk rsl rso rsp rsr rss rst rta rtb rtc rte rtf rti rtj rtk rtl rto rtp rtr rts rtt saa sab sac sae saf sai saj sak sal sao sap sar sas sat sba sbb sbc sbe sbf sbi sbj sbk sbl sbo sbp sbr sbs sbt sca scb scc sce scf sci scj sck scl sco scp scr scs sct se- sea seb sec see sef sei sej sek sel seo sep ser ses set sfa sfb sfc sfe sff sfi sfj sfk sfl sfo sfp sfr sfs sft sia sib sic sie sif sii sij sik sil sio sip sir sis sit sja sjb sjc sje sjf sji sjj sjk sjp sjr sjs sjt sk- ska skb skc ske skf ski skj skk skl sko skp skr sks skt sla slb slc sle slf sli slj slk sll slo slp slr sls slt soa sob soc soe sof soi soj sok sol soo sop sor sos sot spa spb spc spe spf spi spk spl spo spp spr sps spt sr- sra srb src sre srf sri srj srk srl sro srp srr srs srt ss- ssa ssb ssc sse ssf ssi ssj ssk ssl sso ssp ssr sss sst sta stb stc ste stf sti stj stk stl sto stp str sts stt taa tab tac tae taf tai taj tak tal tao tap tar tas tat tba tbb tbc tbe tbf tbi tbj tbk tbl tbo tbp tbr tbs tbt tca tcb tcc tce tcf tci tcj tck tcl tco tcp tcr tcs tct te- tea teb tec tee tef tei tej tek tel teo tep ter tes tet tfa tfb tfc tfe tff tfi tfj tfk tfl tfo tfp tfr tfs tft tia tib tic tie tif tii tik til tio tip tir tis tit tjc tje tjf tji tjo tjp tjr tjs tka tkb tkc tke tkk tkl tko tkp tkr tks tkt tla tlc tle tlf tli tlj tlk tll tlo tlp tlr tls tlt to- toa tob toc toe tof toi toj tok tol too top tor tos tot tpa tpb tpc tpe tpf tpi tpj tpk tpl tpo tpp tpr tps tpt tra trb trc tre trf tri trk trl tro trp trr trs trt tsa tsb tsc tse tsf tsi tsj tsk tsl tso tsp tsr tss tst tta ttb ttc tte ttf tti ttk ttl tto ttp ttr tts ttt