rai ral ram rao rar ras rau rca rcc rcd rce rci rcl rcm rco rcr rcs rcu rda rdc rdd rde rdi rdl rdm rdo rdr rds rdu re- rea rec red ree rei rel rem reo rer res reu ria ric rid rie rii ril rim rio rir ris rla rlc rld rle rli rll rlm rlo rlr rls rlu rma rmc rmd rme rmi rml rmm rmo rmr rms roa roc rod roe roi rol rom roo ror ros rou rra rrc rrd rri rrl rrm rrr rrs rru rsa rsc rsd rse rsi rsl rsm rso rsr rss rsu rua ruc rud rue rui rum ruo rur rus ruu saa sac sad sae sai sal sam sao sar sas sau sca scc scd sce sci scl scm sco scr scs scu sda sdc sdd sde sdi sdl sdm sdo sdr sds sdu se- sea sec sed see sei sel sem seo ser ses seu sia sic sid sie sii sil sim sio sir sis siu sla slc sld sle sli sll slm slo slr sls slu sma smc smd sme smi sml smm smo smr sms smu soa soc sod soe soi sol som soo sor sos sou sr- sra src srd sre sri srl srm sro srr srs ss- ssa ssc ssd sse ssi ssl ssm sso ssr sss ssu sua suc sud sue sui sul sum suo sur sus suu ua- uaa uac uad uae uai ual uam uao uar uas uau uca ucc ucd uce uci ucl ucm uco ucr ucs ucu uda udc udd ude udi udl udm udo udr uds udu uea uec ued uee uei uel uem uer ues uia uic uid uie uii uil uim uio uir uis uiu ula ulc uld ule uli ull ulm ulo ulr uls ulu um- uma umc umd ume umi uml umm umo umr ums umu uoa uoc uod uoe uol uom uoo uor uos ur- ura urc urd ure uri url urm uro urr urs uru usa usc usd use usi usl usm uso usr uss usu uua uuc uue uum uur uus uuu