sclk scls scsa scsc scsl scsu scua scub scul sfas sfba sfbc sfca sfcc sfcs sffc sfla sflc sfls sfss sfsu skab skac skaf skal skfc skss skua skul slaa slab slac slaf slak slas slau slcc slcu slsa slsc slsu slub sluc ssaa ssab ssac ssas ssau ssca sscc sscs ssfc ssfl ssla sslc sssa sssb sssc sssf ssss suas sub- suba subb subl subs suc- succ suck sucs suf- sufa sufc suff sufs sufu suka suks suku sul- sula sulc sulf sulk sull sulu sus- susa susk suss susu suus uabc uaca uafa uasa uaua ubac ubal ubba ubla ubls ucak ucal ucas ucbc ucca ucfa ucfb ucka ucla ucsa ucsb ucsc ucsf ucsu ucua ufcu uffa ufuk ukaf ukba ukcc ukla uksa uksc ulaa ulas ulbc ulcc ulla ulsa ulua uluk ulul ulus us-a us-k usaa usac usaf usak usal usas usba usbc usbl usbs usca uscc uscf uscs usfa usfc usfl usfs uska uslu ussa ussb ussc ussf usss ussu usua usul usus uulu uuuu