rmn rmo rmr rms rna rng rnm rnn rno rnr rns roa rof rog roj rok rol rom ron roo ror ros rra rrf rrg rrk rrl rrm rrn rrr rrs rsa rsf rsg rsj rsk rsl rsm rsn rso rsr rss saa saf sag saj sak sal sam san sao sar sas sfa sff sfg sfj sfk sfl sfm sfn sfo sfr sfs sga sgf sgg sgk sgl sgm sgn sgo sgr sgs sja sjf sjj sjk sjm sjr sjs sk- ska skf skg skj skk skl skm sko skr sks sla slf slg slj slk sll slm sln slo slr sls sma smf smg smk sml smm smn smo smr sms sna snf sng snj snk snl snm snn sno snr sns soa sof sog soj sok sol som son soo sor sos sr- sra srf srg srj srk srl srm srn sro srr srs ss- ssa ssf ssg ssj ssk ssl ssm ssn sso ssr sss