a-a a-b a-t aaa aab aag aar aas aat aau aaw ab- aba abb abg abr abs abt abu abw ag- aga agb agg agr ags agt agu agw ar- ara arb arg arr ars art aru arw as- asa asb asg asr ass ast asu asw at- ata atb atg atr ats att atu atw au- aua aub aug aur aus aut auw aw- awa awb awg awr aws awt awu aww b-u baa bab bag bar bas bat bau baw bba bbb bbg bbr bbs bbt bbu bbw bga bgb bgg bgr bgs bgt bgu bgw bra brb brg brr brs brt bru brw bsa bsb bsg bsr bss bst bsu bsw bta btb btg btr bts btt btu btw bua bub bug bur bus but buu buw bwa bwb bwg bwr bws bwu gaa gab gag gar gas gat gau gaw gba gbg gbr gbs gbt gbu gbw gga ggb ggg ggr ggs ggt ggu ggw gra grb grg grr grs grt gru grw gsa gsb gsg gsr gss gst gsu gsw gta gtb gtg gtr gts gtt gtu gtw gu- gua gub gug gur gus gut guu gwa gwb gwg gwr gws gwt gwu ra- raa rab rag rar ras rat rau raw rba rbb rbg rbr rbs rbt rbu rbw rga rgb rgg rgr rgs rgt rgw rra rrb rrg rrr rrs rrt rru rsa rsb rsg rsr rss rst rsu rsw rta rtb rtg rtr rts rtt rtu rtw rua rub rug rur rus rut ruu rwa rwb rwr rws rwu saa sab sag sar sas sat sau saw sba sbb sbg sbr sbs sbt sbu sbw sga sgb sgg sgr sgs sgt sgu sr- sra srb srg srr srs srt srw ss- ssa ssb ssg ssr sss sst ssu ssw sta stb stg str sts stt stu stw sua sub sug sur sus sut suu suw swa swb swg swr sws swt swu taa tab tag tar tas tat tau taw tba tbb tbg tbr tbs tbt tbu tga tgb tgg tgr tgs tgt tgu tra trb trg trr trs trt tru trw tsa tsb tsg tsr tss tst tsu tsw tta ttb ttg ttr tts ttt ttu ttw tua tub tug tur tus tut tuu twa twb twg twr tws twt twu tww ua- uaa uab uag uar uas uat uau uaw uba ubb ubg ubr ubs ubt ubu ubw uga ugb ugg ugr ugs ugt ugu ur- ura urb urg urr urs urt uru urw usa usb usg usr uss ust usu usw uta utb utr uts utt utu uua uug uur uus uut uuu uwa uwb uwg uwr uws uww waa wab wag war was wat wau waw wba wbb wbg wbr wbs wbt wbw wga wgb wgr wgs wgt wgw wr- wra wrg wrr wrs wrt wru wrw wsa wsb wsg wsr wss wst wsu wsw wta wtb wtr wts wtt wtu wtw wua wub wug wur wus wut wwa wwt wwu www