rde rdf rdi rdm rdo rdp rdr rds rdu re- rea red ree ref rei rem reo rep rer res reu rfa rfd rfe rff rfi rfm rfo rfp rfr rfs rfu ria rid rie rif rii rim rio rip rir ris rma rmd rme rmf rmi rmm rmo rmp rmr rms roa rod roe rof roi rom roo rop ror ros rou rpa rpd rpe rpf rpi rpm rpo rpp rpr rps rpu rra rrd rrf rri rrm rrp rrr rrs rru rsa rsd rse rsf rsi rsm rso rsp rsr rss rsu rua rud rue ruf rui rum ruo rup rur rus ruu saa sad sae saf sai sam sao sap sar sas sau sda sdd sde sdf sdi sdm sdo sdp sdr sds sdu se- sea sed see sef sei sem seo sep ser ses seu sfa sfd sfe sff sfi sfm sfo sfp sfr sfs sfu sia sid sie sif sii sim sio sip sir sis siu sma smd sme smf smi smm smo smp smr sms smu soa sod soe sof soi som soo sop sor sos sou spa spd spe spf spi spm spo spp spr sps spu sr- sra srd sre srf sri srm sro srp srr srs ss- ssa ssd sse ssf ssi ssm sso ssp ssr sss ssu sua sud sue suf sui sum suo sup sur sus suu ua- uaa uad uae uaf uai uam uao uap uar uas uau uda udd ude udf udi udm udo udp udr uds udu uea ued uee uef uei uem uep uer ues ufa ufd ufe uff ufi ufm ufo ufp ufr ufs ufu uia uid uie uif uii uim uio uip uir uis uiu um- uma umd ume umf umi umm umo ump umr ums umu uoa uod uoe uom uoo uop uor uos up- upa upd upe upf upi upm upo upp upr ups upu ur- ura urd ure urf uri urm uro urp urr urs uru usa usd use usf usi usm uso usp usr uss usu uua uue uum uur uus uuu