ra- raa rae raf rai ram ran rao rap rar ras rat re- rea ree ref rei rem ren reo rep rer res ret rfa rfe rff rfi rfm rfn rfo rfp rfr rfs rft ria rie rif rii rim rin rio rip rir ris rit rma rme rmf rmi rmm rmn rmo rmp rmr rms rmt rna rni rnm rnn rno rnp rnr rns rnt roa roe rof roi rom ron roo rop ror ros rot rpa rpe rpf rpi rpm rpn rpo rpp rpr rps rpt rra rrf rri rrm rrn rrp rrr rrs rrt rsa rse rsf rsi rsm rsn rso rsp rsr rss rst rta rte rtf rti rtm rtn rto rtp rtr rts rtt saa sae saf sai sam san sao sap sar sas sat se- sea see sef sei sem sen seo sep ser ses set sfa sfe sff sfi sfm sfn sfo sfp sfr sfs sft sia sie sif sii sim sin sio sip sir sis sit sma sme smf smi smm smn smo smp smr sms smt sna sne snf sni snm snn sno snp snr sns snt soa soe sof soi som son soo sop sor sos sot spa spe spf spi spm spn spo spp spr sps spt sr- sra sre srf sri srm srn sro srp srr srs srt ss- ssa sse ssf ssi ssm ssn sso ssp ssr sss sst sta ste stf sti stm stn sto stp str sts stt taa tae taf tai tam tan tao tap tar tas tat te- tea tee tef tei tem ten teo tep ter tes tet tfa tfe tff tfi tfm tfn tfo tfp tfr tfs tft tia tie tif tii tim tin tio tip tir tis tit tma tme tmf tmi tmm tmn tmo tmp tmr tms tmt tna tne tnf tni tnm tnn tno tnp tnr tns tnt to- toa toe tof toi tom ton too top tor tos tot tpa tpe tpf tpi tpm tpn tpo tpp tpr tps tpt tra tre trf tri trm trn tro trp trr trs trt tsa tse tsf tsi tsm tsn tso tsp tsr tss tst tta tte ttf tti ttm ttn tto ttp ttr tts ttt