a-a a-b aaa aab aad aae aag aak aao aau ab- aba abb abd abe abg abk abo abu ad- ada adb add ade adg adk ado adu aea aeb aed aee aeg aek aeo aeu ag- aga agb agd age agg agk ago agu aka akb akd ake akg akk ako aku aoa aob aod aoe aog aok aoo aou au- aua aub aud aue aug auk auo b-u baa bab bad bae bag bak bao bau bba bbb bbd bbe bbg bbk bbo bbu bda bdb bdd bde bdg bdk bdo bdu be- bea beb bed bee beg bek beo beu bga bgb bgd bge bgg bgk bgo bgu bka bkb bke bkg bkk bko boa bob bod boe bog bok boo bou bua bub bud bue bug buk buo buu daa dab dad dae dag dak dao dau dba dbb dbd dbe dbg dbk dbo dbu dda ddb ddd dde ddg ddk ddo ddu de- dea deb ded dee deg dek deo deu dga dgd dge dgg dgk dgu dka dkb dke dkg dkk dko dku doa dob dod doe dog dok doo dou dua dub dud due dug duk duo eaa eab ead eae eag eak eao eau eba ebb ebd ebe ebg ebk ebo ebu ed- eda edb edd ede edg edk edo edu eea eeb eed eee eeg eek eeo ega egb egd ege egg ego egu eka ekb ekd eke ekg eko eku eo- eoa eob eod eoe eog eok eoo eou eu- eua eub eud eue eug g-d gaa gab gad gae gag gak gao gau gba gbd gbe gbg gbk gbo gbu gda gdb gdd gde gdk gdo gdu ge- gea geb ged gee geg gek geo geu gga ggb ggd ggg ggo ggu gka gkb gkd gko goa gob god goe gog gok goo gou gu- gua gub gud gue gug guk guo guu ka- kaa kab kad kae kag kak kao kau kba kbb kbd kbe kbk kbo kbu kda kdb kde kdg kdk kdo kdu ke- kea keb ked kee keg kek keo kga kgb kgd kgo kgu kkb kke kkk kku koa kob kod koe kog kok koo kou kub kud kue kug kuk kuu oaa oab oad oae oag oak oao oau ob- oba obb obd obe obg obk obo obu oda odb odd ode odg odo odu oea oeb oed oee oeg oeo oga ogd oge ogg ogo oka okb okd oke okg okk oko oku oo- ooa oob ood oog ook ooo ou- oua oud oue ouk ouo ua- uaa uab uad uae uag uak uao uau uba ubb ube ubg ubk ubo ubu uda udb udd ude udg udk udo udu uea ueb ued uee ueg uga ugb uge ugg ugk ugo ugu uka ukb uke ukk uku uoa uob uod uoe uog uok uoo uua uue uug uuu