roi roj rol roo rop ror ros rot rpa rpc rpe rpi rpl rpo rpp rpr rps rpt rra rrc rri rrl rrp rrr rrs rrt rsa rsc rse rsi rsj rsl rso rsp rsr rss rst rta rtc rte rti rtj rtl rto rtp rtr rts rtt saa sac sae sai saj sal sao sap sar sas sat sca scc sce sci scj scl sco scp scr scs sct se- sea sec see sei sej sel seo sep ser ses set sia sic sie sii sij sil sio sip sir sis sit sja sjc sje sji sjj sjp sjr sjs sjt sla slc sle sli slj sll slo slp slr sls slt soa soc soe soi soj sol soo sop sor sos sot spa spc spe spi spl spo spp spr sps spt sr- sra src sre sri srj srl sro srp srr srs srt ss- ssa ssc sse ssi ssj ssl sso ssp ssr sss sst sta stc ste sti stj stl sto stp str sts stt taa tac tae tai taj tal tao tap tar tas tat tca tcc tce tci tcj tcl tco tcp tcr tcs tct te- tea tec tee tei tej tel teo tep ter tes tet tia tic tie tii til tio tip tir tis tit tjc tje tji tjo tjp tjr tjs tla tlc tle tli tlj tll tlo tlp tlr tls tlt to- toa toc toe toi toj tol too top tor tos tot tpa tpc tpe tpi tpj tpl tpo tpp tpr tps tpt tra trc tre tri trl tro trp trr trs trt tsa tsc tse tsi tsj tsl tso tsp tsr tss tst tta ttc tte tti ttl tto ttp ttr tts ttt