ram rar ras rat rba rbb rbc rbe rbg rbi rbl rbm rbr rbs rbt rca rcb rcc rce rcg rci rcl rcm rcr rcs rct re- rea reb rec ree reg rei rel rem rer res ret rga rgb rgc rge rgg rgi rgr rgs rgt ria rib ric rie rig rii ril rim rir ris rit rla rlc rle rlg rli rll rlm rlr rls rlt rma rmb rmc rme rmg rmi rml rmm rmr rms rmt rra rrb rrc rrg rri rrl rrm rrr rrs rrt rsa rsb rsc rse rsg rsi rsl rsm rsr rss rst rta rtb rtc rte rtg rti rtl rtm rtr rts rtt saa sab sac sae sag sai sal sam sar sas sat sba sbb sbc sbe sbg sbi sbl sbm sbr sbs sbt sca scb scc sce scg sci scl scm scr scs sct se- sea seb sec see seg sei sel sem ser ses set sga sgb sgc sge sgg sgi sgl sgm sgr sgs sgt sia sib sic sie sig sii sil sim sir sis sit sla slb slc sle slg sli sll slm slr sls slt sma smb smc sme smg smi sml smm smr sms smt sr- sra srb src sre srg sri srl srm srr srs srt ss- ssa ssb ssc sse ssg ssi ssl ssm ssr sss sst sta stb stc ste stg sti stl stm str sts stt taa tab tac tae tag tai tal tam tar tas tat tba tbb tbc tbe tbg tbi tbl tbm tbr tbs tbt tca tcb tcc tce tcg tci tcl tcm tcr tcs tct te- tea teb tec tee teg tei tel tem ter tes tet tga tgb tgc tge tgg tgi tgl tgm tgr tgs tgt tia tib tic tie tig tii til tim tir tis tit tla tlc tle tlg tli tll tlm tlr tls tlt tma tmb tmc tme tmg tmi tml tmm tmr tms tmt tra trb trc tre trg tri trl trm trr trs trt tsa tsb tsc tse tsg tsi tsl tsm tsr tss tst tta ttb ttc tte ttg tti ttl ttm ttr tts ttt