a-a a-b a-c aaa aab aac aag aak aas aau aaw ab- aba abb abc abg abk abs abu abw ac- aca acb acc acg ack acs acu acw ag- aga agb agc agg agk ags agu agw aka akb akc akg akk aks aku akw as- asa asb asc asg ask ass asu asw au- aua aub auc aug auk aus auw aw- awa awb awc awg awk aws awu aww b-u baa bab bac bag bak bas bau baw bba bbb bbc bbg bbk bbs bbu bbw bca bcb bcc bcg bck bcs bcu bga bgb bgc bgg bgk bgs bgu bgw bka bkb bkc bkg bkk bks bkw bsa bsb bsc bsg bsk bss bsu bsw bua bub buc bug buk bus buu buw bwa bwb bwc bwg bwk bws bwu c-- caa cab cac cag cak cas cau caw cba cbb cbc cbg cbk cbs cbu cbw cca ccb ccc ccg cck ccs ccu ccw cga cgb cgc cgg cgs cgu cgw cka ckb ckc cks ckw csa csb csc csg csk css csu csw cua cub cuc cug cuk cus cuu cuw cw- cwa cwb cwc cwg cwk cws cwu gaa gab gac gag gak gas gau gaw gba gbc gbg gbk gbs gbu gbw gca gcb gcc gcg gck gcs gcu gcw gga ggb ggc ggg ggs ggu ggw gka gkb gks gsa gsb gsc gsg gsk gss gsu gsw gu- gua gub guc gug guk gus guu gwa gwb gwc gwg gwk gws gwu ka- kaa kab kac kag kak kas kau kaw kba kbb kbc kbk kbs kbu kbw kca kcb kcc kcg kck kcs kcu kga kgb kgc kgs kgu kgw kkb kkc kkk kks kku ksa ksb ksc ksg ksk kss ksu ksw kub kuc kug kuk kus kuu kw- kwa kwc kwg kwk kws kww saa sab sac sag sak sas sau saw sba sbb sbc sbg sbk sbs sbu sbw sca scb scc scg sck scs scu scw sga sgb sgc sgg sgk sgs sgu sk- ska skb skc skg skk sks sku skw ss- ssa ssb ssc ssg ssk sss ssu ssw sua sub suc sug suk sus suu suw swa swb swc swg swk sws swu ua- uaa uab uac uag uak uas uau uaw uba ubb ubc ubg ubk ubs ubu ubw uca ucb ucc ucg uck ucs ucu ucw uga ugb ugc ugg ugk ugs ugu uka ukb ukc ukk uku usa usb usc usg usk uss usu usw uua uuc uug uus uuu uwa uwb uwc uwg uws uww waa wab wac wag wak was wau waw wba wbb wbc wbg wbs wbw wca wcb wcc wcg wck wcs wcu wcw wga wgb wgc wgs wgw wka wkb wkc wkg wks wkw wsa wsb wsc wsg wsk wss wsu wsw wua wub wuc wug wus wwa wwc wwu www