rrr rrs rsa rse rsf rsi rsk rsl rsn rso rsr rss rsw rwa rwe rwf rwi rwl rwr rws saa sae saf sai sak sal san sao sar sas saw se- sea see sef sei sek sel sen seo ser ses sew sfa sfe sff sfi sfk sfl sfn sfo sfr sfs sfw sia sie sif sii sik sil sin sio sir sis siw sk- ska ske skf ski skk skl sko skr sks skw sla sle slf sli slk sll sln slo slr sls sna sne snf sni snk snl snn sno snr sns snw soa soe sof soi sok sol son soo sor sos sow sr- sra sre srf sri srk srl srn sro srr srs srw ss- ssa sse ssf ssi ssk ssl ssn sso ssr sss ssw swa swe swf swi swk swl swn swo swr sws waa wae waf wai wak wal wan wao war was waw wea wee wef wei wek wel wen weo wer wes wew wfa wfe wff wfi wfk wfl wfn wfo wfr wfs wfw wia wie wif wii wik wil win wir wis wka wke wkf wko wkr wks wkw wl- wla wle wlf wli wll wln wlo wlr wls wlw wn- wna wne wnf wnl wnn wno wns wnw woa woe wof woi wok wol won woo wor wos wow wr- wra wre wrf wri wrk wrl wrn wro wrr wrs wrw wsa wse wsf wsi wsk wsl wsn wso wsr wss wsw wwa wwe wwf wwi wwl wwn wwo www