rpe rpi rpm rpn rpo rpp rpr rps rpt rra rri rrm rrn rrp rrr rrs rrt rsa rse rsi rsj rsm rsn rso rsp rsr rss rst rta rte rti rtj rtm rtn rto rtp rtr rts rtt saa sae sai saj sam san sao sap sar sas sat se- sea see sei sej sem sen seo sep ser ses set sia sie sii sij sim sin sio sip sir sis sit sja sje sji sjj sjm sjp sjr sjs sjt sma sme smi smm smn smo smp smr sms smt sna sne sni snj snm snn sno snp snr sns snt soa soe soi soj som son soo sop sor sos sot spa spe spi spm spn spo spp spr sps spt sr- sra sre sri srj srm srn sro srp srr srs srt ss- ssa sse ssi ssj ssm ssn sso ssp ssr sss sst sta ste sti stj stm stn sto stp str sts stt taa tae tai taj tam tan tao tap tar tas tat te- tea tee tei tej tem ten teo tep ter tes tet tia tie tii tim tin tio tip tir tis tit tje tji tjm tjo tjp tjr tjs tma tme tmi tmj tmm tmn tmo tmp tmr tms tmt tna tne tni tnm tnn tno tnp tnr tns tnt to- toa toe toi toj tom ton too top tor tos tot tpa tpe tpi tpj tpm tpn tpo tpp tpr tps tpt tra tre tri trm trn tro trp trr trs trt tsa tse tsi tsj tsm tsn tso tsp tsr tss tst tta tte tti ttm ttn tto ttp ttr tts ttt