rfg rfi rfm rfn rfo rfr rfs rfu rga rgc rgf rgg rgi rgn rgo rgr rgs ria ric rif rig rii rim rin rio rir ris rma rmc rmf rmg rmi rmm rmn rmo rmr rms rna rnc rng rni rnm rnn rno rnr rns rnu roa roc rof rog roi rom ron roo ror ros rou rra rrc rrf rrg rri rrm rrn rrr rrs rru rsa rsc rsf rsg rsi rsm rsn rso rsr rss rsu rua ruc ruf rug rui rum run ruo rur rus ruu saa sac saf sag sai sam san sao sar sas sau sca scc scf scg sci scm scn sco scr scs scu sfa sfc sff sfg sfi sfm sfn sfo sfr sfs sfu sga sgc sgf sgg sgi sgm sgn sgo sgr sgs sgu sia sic sif sig sii sim sin sio sir sis siu sma smc smf smg smi smm smn smo smr sms smu sna snc snf sng sni snm snn sno snr sns snu soa soc sof sog soi som son soo sor sos sou sr- sra src srf srg sri srm srn sro srr srs ss- ssa ssc ssf ssg ssi ssm ssn sso ssr sss ssu sua suc suf sug sui sum sun suo sur sus suu ua- uaa uac uaf uag uai uam uan uao uar uas uau uca ucc ucf ucg uci ucm ucn uco ucr ucs ucu ufa ufc uff ufg ufi ufm ufn ufo ufr ufs ufu uga ugc ugf ugg ugi ugm ugn ugo ugr ugs ugu uia uic uif uig uii uim uin uio uir uis uiu um- uma umc umf umg umi umm umn umo umr ums umu un- una unc unf ung uni unm unn uno unr uns unu uoa uoc uog uom uon uoo uor uos ur- ura urc urf urg uri urm urn uro urr urs uru usa usc usf usg usi usm usn uso usr uss usu uua uuc uug uum uun uur uus uuu