rra rrc rrg rrh rri rrn rrp rrr rrs rsa rsc rse rsg rsh rsi rsn rsp rsr rss rsx rxp rxr rxs saa sac sae sag sah sai san sap sar sas sax sca scc sce scg sch sci scn scp scr scs scx se- sea sec see seg seh sei sen sep ser ses sex sga sgc sge sgg sgh sgi sgn sgp sgr sgs sgx sh- sha shc she shg shh shi shn shp shr shs sia sic sie sig sih sii sin sip sir sis six sna snc sne sng sni snn snp snr sns spa spc spe spg sph spi spn spp spr sps spx sr- sra src sre srg srh sri srn srp srr srs srx ss- ssa ssc sse ssg ssh ssi ssn ssp ssr sss ssx sxc sxi sxn sxs xaa xac xag xan xap xar xas xch xci xcp xcr xcx xee xeg xen xep xer xes xex xge xgi xgp xhp xia xic xie xii xin xis xix xna xnc xns xpa xpc xpe xpg xpn xpp xps xrc xrx xsa xsc xsi xsp xss xxi xxp xxx